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WorksheetsEVS Practice
Total questions: 63
Worksheet time: 36mins
Air pollution is _________________
the addition of any substance that has harmful or toxic effects to air
the addition of any good substance that benefits air
a chemical reaction
Power generation by following mode is least polluting
Coal
Oil
Natural gas
Hydro energy
Energy and manure are generated by
Nuclear plants
Thermal plants
Biogas plants
Hydroelectric plants
Endemic species are mostly
Confined to a particular locality
Whose number is largest
Which are available on Western Ghats
Which flower annually
Ultra-violet radiation is absorbed and removed by
Ozone
Oxygen
Carbondioxide
Carbon tetrachloride
The scientific study of the interaction between organisms and their environment is called...
Ecology
Biology
Astronomy
These are all of the nonliving parts of an ecosystem.
Abiotic factors
Biotic factors
This is a coastal body of water where fresh water from a river mixes with salt water from the ocean.
Estuary
Desert
Freshwater lake
An area of coastal grassland that is regularly flooded by seawater.
Freshwater marsh
Salt marsh
Estuary
This is all the plant life present in a particular region or time, generally the naturally occurring native plants.
Flora
Fauna
In ___________________ type of bioregion, desertification is most likely to occur.
Tropical Forests
Temperate Forests
Coniferous Forests
Grasslands
Saprophytes are _________________________.
Living beings that feed on the sap from tree bark
Living beings that feed on dead or decayed organic matter
Living beings that feed on other living beings.
Living beings that feed on dead or decayed inorganic matter
71% of earth surface is covered with _______________.
land
air
water
coal
A food web consists of __________________.
Interlocking food chains
Producers, consumers and decomposers
A portion of a food chain
A set of similar consumers
Pure water is
White,good smell,sweet taste
Colourless, sweet smell, no taste
Colourless, smellless, tasteless
White, smelly, salty
River water is polluted due to
Boating
Throwing waste materials
Swimming
Fishing
River when passes through villages, towns and cities becomes polluted due to
Human activities
Wastes from factories
Smoke from factories
Smoke from vehicles
Drinking impure water can cause diseases like
Cough and cold
Heart attack
Diarrohea
Headache
Earthworms and bacteria are called _______________.
Producers
Consumers
Decomposers
None of these
Atmospheric ozone layer which protect us from UV rays is getting depleted most by addition of ________________.
Chloro flurocarbon
Carbon monooxide
Carbon dioxide
Sulpur dioxide
Lowest layer of atmosphere is called _________________.
Thermosphere
Stratosphere
Troposphere
Mesosphere
All of the living and nonliving components that interact in an environment.
population
ecosystem
community
organism
A change in a characteristic of a living thing that allows it to survive in its environment is called _____________.
an adaptation
an ecosystem
migration
The transfer of energy from one organism to the next in an ecosystem begins with a producer. A producer is an organism that produces its own food. A consumer is an organism in a food chain that obtains energy from producers or other consumers; consumers may be herbivores or carnivores.
Which food chain correctly describes the flow of energy in an ecosystem?
grass → grasshopper → fish → human
grasshopper → fish → human
human → fish → grasshopper
human → grasshopper → fish → grass
What happens to the amount of available energy in the pyramid as it moves up through the different levels?
it increases
it decreases
it remains the same
it decreases, then increases
What is a community?
A habitat with abiotic factors
A very small habitat
All the abiotic factors in a specific area
All the different populations that live together in an area
The place where an animal lives and gets what it needs to
survive is called_______.
A community
A Habitat
An environment
A niche
Terrarium and aquarium are examples of……………...
An artificial ecosystem
A natural ecosystem
A biosphere
A habitat
The ..........environment consists of several interconnected ecosystem.
Natural
Artificial
Biological
none of the above
Identify this ecosystem.
Coral Ecosystem
Pond Ecosystem
Tundra Ecosystem
Identify this ecosystem.
Pond Ecosystem
Forest Ecosystem
Coral Reef Ecosystem
How do biodiversity and stability work together?
The lower the biodiversity the greater the stability of an ecosystem.
The higher the biodiversity, the less stable the ecosystem
The higher the biodiversity, the greater the stability of the ecosystem.
Biodiversity has nothing to do with ecosystem stability.
Define genetic diversity
a variety of genes and traits within a species
a variety of ecosystems in a given area
system made up of all the living and nonliving things in a given area
a variety of species in an ecosystem
Which statement best describes an example of high biodiversity?
A pond ecosystem is populated by a single species of frogs
A state park that includes multiple forest and freshwater ecosystems with many different species of fish, birds and frogs in a variety of colors
A desert ecosystem is populated by organ pipe cacti, camels, and armadillo lizards
Why is biodiversity important to ecosystems?
It helps populations adapt to ecological changes.
It increases at each level of the food chain.
What are the 3 types of biodiversity (SELECT 3)
Genetic
Species
Ecosystem
Size
Biotic
The more different types of organisms and the more relationships that can occur between organisms the greater the...
Species Diversity
Genetic Diversity
Ecosystem Diversity
Greater ____________________ means there are more habitats to support different types of organisms.
Ecosystem Diversity
Species Diversity
Genetic Diversity
The greater the ____________________, the more likely a species is to survive changes to their environment
Genetic Diversity
Species Diversity
Ecosystem Diversity
Which of the following forms of biodiversity describes the differences between individuals within the same species?
Species
Habitat
Genetic
None of the Above
What has a higher biodiversity: a temperate forest or a frozen tundra?
Frozen Tundra
Temperate Forest
They have a similar biodiversity
What is this?
Earthquake
Flood
Fire fighter
Wildfire
What is this?
Flood
Earthquake
Tsunami
Windstorm
What is this?
Flood
Global warming
Wildfire
Tsunami
What is this?
Earthquake
Flood
Landslide
Wildfire
What is a natural disaster?
A red letter day
A bad thing caused by a bad person
An event that causes suffering brought on by nature
An event that causes suffering brought on by an enemy
What are giant ocean-going waves that are caused by an underwater earthquake or volcanic eruptions called?
Tsunamis
Earthquake
Tornadoes
Hurricanes
What is the device called that uses special weights and magnetic fields to measure the movement of the ground?
Barometer
Speedometer
Seismograph
Telegraph
The level of risk of a disaster depends on
Nature of the hazard
Vulnerability of the elements which are affected
Economic value of the elements which are affected
All of the above
Vulnerability analysis comes in which part of the Disaster Management Cycle
Mitigation
Preparedness
Response
Recovery
The worst industrial disaster took place in:
Korba chimney collapse, 2009
Bombay docks explosion, 1944
Bhopal gas tragedy, 1984
Chasnala mining disaster, 1975
Sliding of large amount of ice and snow on a mountain due to an earthquake is called (a)
Tropical cyclones are called_______in the Atlantic Ocean, __________ in the western Pacific Ocean and ________ in the Indian Ocean
hurricanes, typhoons, cyclones
cyclones, typhoons, hurricanes
cyclones, hurricanes, typhoons
None of the above
What is the ph level of acid rain?
4
3
1
6
What harmful health effects do scientist say that the UV radiation that passes through our "shield" will cause?
increase in skin cancer
immune deficiencies
cataracts
all of the answers
What are "holes" in the ozone layer?
places where the ozone concentrations are lower than under normal conditions, allowing more UV radiation to reach the Earth's surface.
places where the ozone concentrations are higher than under normal conditions, allowing more UV radiation to reach the Earth's surface.
places where the ozone concentrations are higher than under normal conditions, allowing lessUV radiation to reach the Earth's surface.
