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Worksheetsgeography 5.1
Total questions: 102
Worksheet time: 54mins
The Montreal Protocol, which addresses ozone depletion, was signed in which year?
1985
1987
1990
1992
What is the permissible limit of lead in drinking water as per WHO standards (in mg/L)?
0.01
0.05
0.10
0.50
The concept of 'Ecological Footprint' was developed by:
Rachel Carson
William Rees and Mathis Wackernagel
E.O. Wilson
Paul Ehrlich
Which greenhouse gas has the highest Global Warming Potential (GWP)?
Carbon dioxide
Methane
Nitrous oxide
Sulfur hexafluoride
The 'Great Pacific Garbage Patch' is located in which ocean?
Atlantic Ocean
Indian Ocean
Pacific Ocean (North Pacific Gyre)
Arctic Ocean
Bio-magnification was first documented through which chemical?
DDT (Dichlorodiphenyltrichloroethane)
Mercury
Lead
Arsenic
The National Green Tribunal (NGT) was established under which act?
Environment Protection Act, 1986
National Green Tribunal Act, 2010
Wildlife Protection Act, 1972
Forest Conservation Act, 1980
What is the acceptable noise level for residential areas during daytime as per CPCB (in dB)?
45
55
65
75
The Minamata Convention deals with which pollutant?
Lead
Mercury
Cadmium
Arsenic
Which layer of atmosphere contains maximum ozone concentration?
Troposphere
Stratosphere (15-35 km altitude)
Mesosphere
Thermosphere
Why is eutrophication considered harmful despite increasing nutrients in water bodies?
It decreases water temperature
It depletes dissolved oxygen through algal bloom decomposition, killing aquatic life
It increases water pH only
It has no harmful effects
How does acid rain affect limestone buildings and monuments?
It strengthens them
It reacts with calcium carbonate forming soluble calcium sulfate, causing erosion
No chemical reaction occurs
It only changes color
Why are CFCs particularly dangerous for the ozone layer?
They are toxic
Chlorine atoms from CFCs catalytically destroy ozone molecules in chain reactions
They absorb sunlight
They are greenhouse gases only
How does thermal pollution from power plants affect aquatic ecosystems?
It improves fish growth
Reduces dissolved oxygen, alters metabolism, and disrupts reproductive cycles
It cools the water
No significant effect
Why is nuclear waste disposal particularly challenging?
It is expensive only
Radioactive decay spans thousands of years requiring long-term isolation
It occupies large space
It smells bad
A factory releases effluent with BOD of 400 mg/L into a river. What immediate effect will this have?
Improved water quality
Severe oxygen depletion threatening aquatic life
No change
Increased fish population
If a city wants to reduce urban heat island effect, which measure would be most effective?
Building more concrete structures
Increasing green cover, reflective roofs, and water bodies
Removing all trees
Building taller buildings
To reduce agricultural runoff pollution, which farming practice is recommended?
Increase fertilizer use
Precision agriculture, buffer strips, and controlled fertilizer application
Remove all vegetation
Continuous flooding
A community wants to manage plastic waste effectively. What integrated approach should they adopt?
Burn all plastic
Reduce usage, segregate, recycle, and use alternatives
Dump in landfills only
Ignore the problem
To prevent groundwater contamination from industrial waste, what measure is essential?
Pour waste directly
Lined landfills, treatment before disposal, monitoring wells
Dilute and discharge
Underground injection
The term 'Sustainable Development' was popularized by which commission's report?
Club of Rome Report
Brundtland Commission Report (Our Common Future, 1987)
Stockholm Conference
Kyoto Protocol
How many Sustainable Development Goals (SDGs) were adopted by UN in 2015?
8
15
17
20
The Paris Agreement aims to limit global temperature rise to:
Below 1.5°C above pre-industrial levels
Below 2°C with efforts toward 1.5°C
Below 3°C
Below 4°C
India's target year for achieving Net Zero carbon emissions is:
2030
2050
2070
2080
The 'Chipko Movement' originated in which Indian state?
Kerala
Uttarakhand (then Uttar Pradesh)
Maharashtra
West Bengal
What percentage of forest cover does India aim to maintain as per National Forest Policy?
25%
33%
40%
50%
The National Action Plan on Climate Change (NAPCC) includes how many missions?
5
8
10
12
The concept of 'Tragedy of the Commons' was proposed by:
Garrett Hardin
Rachel Carson
E.O. Wilson
Paul Ehrlich
The Wildlife Protection Act was enacted in India in:
1972
1980
1986
1991
What is India's rank in the Environmental Performance Index (EPI) 2022?
120
140
180
200
Why is the 'circular economy' model considered superior to the linear model?
It is older
It minimizes waste by reusing, recycling, and regenerating materials continuously
It is cheaper always
It requires no technology
How does agroforestry contribute to sustainable development?
It reduces crop yield
Integrates trees with crops providing economic, environmental, and social benefits
It increases soil erosion
It requires more water
Why is community participation crucial for sustainable development?
Government mandate only
Local knowledge, ownership, and context-specific solutions ensure long-term success
It reduces costs only
No particular reason
How do carbon credits promote emission reduction?
They don't work
Create economic incentive by allowing trade of emission reductions
They increase emissions
Only symbolic value
Why is biodiversity important for ecosystem resilience?
Why is biodiversity important for ecosystem resilience?
It looks beautiful
Genetic diversity enables adaptation to environmental changes and stress
No relationship
It complicates management
A developing region wants balanced economic growth and environmental protection. Which approach should they prioritize?
Rapid industrialization ignoring environment
Green technology, renewable energy, sustainable practices with phased development
Complete ban on development
Copy developed nations
To restore a degraded watershed, what integrated management strategy is most effective?
Do nothing
Soil conservation, afforestation, water harvesting, and community involvement
Build dams only
Remove all vegetation
A farmer wants to adopt organic farming. What transition strategy would be advisable?
Immediate complete shift
Gradual transition, soil building, learning pest management, market linkage
Continue chemical farming
Abandon farming
To promote renewable energy in rural areas, which policy measure would be most effective?
Ban fossil fuels immediately
Subsidies, awareness, technical support, and grid connectivity
No intervention
Import everything
A city faces severe water scarcity. What sustainable solution should be implemented?
Import water indefinitely
Rainwater harvesting, wastewater treatment, demand management, leak prevention
Reduce population
Pray for rain
The age of Earth is approximately:
3.5 billion years
4.54 billion years
5.5 billion years
6 billion years
Which planet has the shortest day (fastest rotation)?
Earth
Jupiter (approximately 10 hours)
Mars
Saturn
The Kuiper Belt is located beyond which planet?
Mars
Jupiter
Saturn
Neptune
The Great Red Spot is a storm on which planet?
Saturn
Jupiter
Neptune
Uranus
Earth's inner core is primarily composed of:
Silicon and oxygen
Iron and nickel
Carbon
Magnesium
The asteroid belt is located between which two planets?
Earth and Mars
Mars and Jupiter
Jupiter and Saturn
Saturn and Uranus
What is the average distance between Earth and Sun called?
Light year
Astronomical Unit (AU) - approximately 150 million km
Parsec
Solar constant
The Mohorovičić discontinuity (Moho) separates:
Crust and mantle
Mantle and outer core
Outer and inner core
Lithosphere and asthenosphere
Which planet has the most extensive ring system?
Jupiter
Saturn
Uranus
Neptune
The largest volcano in the solar system, Olympus Mons, is located on:
Venus
Mars
Earth
Jupiter's moon Io
Why does Venus have higher surface temperature than Mercury despite being farther from Sun?
It is larger
Runaway greenhouse effect due to thick CO2 atmosphere
Internal heat generation
Closer to Earth
How do scientists determine Earth's internal structure without direct observation?
Guessing
Seismic wave velocity, refraction, and shadow zones analysis
Drilling to core
Satellite imagery
Why do planets orbit Sun in elliptical paths rather than circular?
Random chance
Gravitational dynamics and conservation of angular momentum (Kepler's Laws)
Sun's preference
Solar wind
How does Earth's magnetic field protect life?
It provides electricity
Deflects harmful solar wind and cosmic radiation
Controls climate
No protective function
Why is the ocean floor younger than continental crust?
It is not younger
Continuous creation at mid-ocean ridges and subduction at trenches
Recent formation
Continental preference
If a space mission needs to minimize travel time to Mars, when should it be launched?
Any time
During Hohmann transfer window when Earth-Mars alignment is optimal (every 26 months)
Winter only
Summer only
To establish a permanent lunar base, which location would be most suitable?
Lunar highlands
Polar regions with water ice and continuous sunlight areas
Far side only
Random location
If Earth's rotation suddenly stopped, what immediate consequence would occur?
Nothing
Catastrophic atmospheric and oceanic redistribution, climate disruption
Better weather
Longer days only
To detect exoplanets around distant stars, which method is most commonly used?
Direct imaging
Transit method (brightness dimming) and radial velocity
Listening
Guessing
If a geologist wants to determine the age of a rock, which technique should be used?
Visual inspection
Radiometric dating using isotope decay
Taste test
Color analysis
The Pacific Ring of Fire accounts for what percentage of world's active volcanoes?
50%
60%
75%
90%
The deepest part of the ocean, Challenger Deep, is located in which trench?
Peru-Chile Trench
Mariana Trench (approximately 11,000 m)
Java Trench
Puerto Rico Trench
Continental drift theory was proposed by:
Harry Hess
Alfred Wegener
James Hutton
Charles Lyell
What percentage of Earth's water is freshwater?
1%
2.5%
5%
10%
The Mid-Atlantic Ridge is an example of:
Convergent boundary
Divergent boundary
Transform boundary
Continental rift
The highest mountain on ocean floor (from base to peak) is:
Mount Everest
Mauna Kea
K2
Kilimanjaro
Seafloor spreading hypothesis was proposed by:
Alfred Wegener
Harry Hess
J. Tuzo Wilson
Arthur Holmes
The temperature gradient in Earth's crust is approximately:
1°C per 10 meters
1°C per 32 meters (3°C per 100m)
10°C per 100 meters
1°C per 100 meters
The phenomenon of ocean water circulation driven by density differences is called:
Surface current
Thermohaline circulation
Tidal current
Wind drift
The boundary between Pacific and Indian tectonic plates passes near:
Hawaii
New Zealand
Madagascar
Iceland
The boundary between Pacific and Indian tectonic plates passes near:
Hawaii
New Zealand
Madagascar
Iceland
Why are mid-ocean ridges sites of volcanic activity?
Random occurrence
Upwelling magma fills gap created by diverging plates
Ocean water pressure
No volcanic activity occurs
How do ocean currents influence regional climate?
They don't
Warm currents increase temperature and moisture; cold currents cool regions
Only local effects
Unpredictable influence
Why is the oceanic crust denser than continental crust?
It is not denser
Basaltic composition (mafic minerals) vs granitic (felsic minerals)
Water pressure
Age difference
How does plate tectonics explain distribution of earthquakes?
Random distribution
Concentrated along plate boundaries where stress accumulates
Uniform distribution
Only in oceans
Why do coral reefs form primarily in shallow tropical waters?
Random preference
Symbiotic algae require sunlight; warm temperatures needed for coral growth
Deep water available
Fish preference
If a new island appears due to volcanic activity, how would you determine if it's along a plate boundary?
Guess
Map seismic activity, determine tectonic setting, analyze magma composition
Visual inspection only
Wait and watch
To predict tsunami arrival time after an undersea earthquake, what information is needed?
Wind speed
Earthquake location, magnitude, water depth, and distance to coast
Tide timing
Moon phase
A coastal region experiences rapid erosion. What integrated management approach should be adopted?
Build walls everywhere
Study wave patterns, sediment transport, implement soft engineering, mangrove restoration
Abandon coast
Do nothing
To locate potential geothermal energy sites, what geological features should be surveyed?
Random drilling
Volcanic regions, hot springs, plate boundaries, subsurface temperature mapping
Coastal areas only
Desert regions
If you discover a rock with marine fossils at 3000m altitude, what does this indicate?
Fish flew there
Tectonic uplift of former ocean floor
Recent flood
Contamination
The highest peak in Tamil Nadu is:
Doddabetta
Anai Mudi (2,695 m in Western Ghats)
Kodaikanal
Javadi Hills
Which river does NOT originate in Tamil Nadu?
Cauvery
Vaigai
Thamirabarani
Palar
The Kallanai (Grand Anicut) was built across Cauvery river during:
Pallava period
Chola period (around 2nd century CE)
Pandya period
British period
Tamil Nadu ranks which position in urbanization among Indian states?
First
Third
Fifth
Tenth
The Mannar Gulf separates Tamil Nadu from:
Andhra Pradesh
Sri Lanka
Kerala
Karnataka
Which agro-climatic zone covers maximum area in Tamil Nadu?
Cauvery Delta Zone
Northwestern Zone
Western Zone
Southern Zone
Tamil Nadu's coastline length is approximately:
906 km
1076 km
1200 km
1500 km
The major soil type in Cauvery delta region is:
Red soil
Alluvial soil
Black soil
Laterite soil
Point Calimere Wildlife Sanctuary is famous for:
Tigers
Migratory birds
Elephants
Deer
The Nilgiri Biosphere Reserve was established in:
1986
1988
1990
1992
Why does Tamil Nadu face water scarcity despite having several rivers?
Too many rivers
Seasonal rainfall pattern, high evaporation, increasing demand, interstate disputes
No groundwater
Government failure only
How does Western Ghats influence Tamil Nadu's climate?
No influence
Creates rain shadow effect; blocks southwest monsoon causing dry climate in rain shadow areas
Makes it colder
Only aesthetic value
Why is Tamil Nadu a leader in renewable energy despite limited conventional resources?
Government mandate only
High wind and solar potential, proactive policies, industrial demand
No other options
External pressure
How does the Northeast monsoon benefit Tamil Nadu agriculture?
It doesn't
Provides major rainfall (October-December) for Rabi crops and tank irrigation
Only damages crops
Creates floods only
Why are coastal areas of Tamil Nadu vulnerable to cyclones?
Ocean proximity only
Bay of Bengal cyclone path, flat coastal topography, high population density
No particular reason
Government neglect
To improve water availability in drought-prone regions of Tamil Nadu, what integrated approach is needed?
Build dams only
Watershed development, farm ponds, drip irrigation, water budgeting, crop pattern change
Import water
Abandon agriculture
If Chennai wants to become water-secure, what multi-pronged strategy should be implemented?
Depend on rains
Desalination, rainwater harvesting, wastewater recycling, aquifer recharge, demand management
Buy from other states
Reduce population
To promote sustainable tourism in Nilgiris, what measures should be prioritized?
Build more resorts
Carrying capacity limits, eco-friendly practices, community involvement, conservation
Unrestricted development
Ban tourism
A farmer in Coimbatore wants to optimize water use. Which irrigation method should be promoted?
Flood irrigation
Drip or sprinkler irrigation with mulching
Canal irrigation only
No irrigation
To develop Salem district's industrial potential sustainably, what planning approach is required?
Random industrialization
Resource assessment, infrastructure development, environmental safeguards, skill training, balanced growth
Copy other districts
Only agriculture
