WorksheetsScience Olympiad
Total questions: 40
Worksheet time: 22mins
I am a huge body of salt water covering most of the earth who am I?
River
Ocean
Pond
Which of these is a underground water source.
Lake
Well
Ocean
Pond
The gaseous form of water is
ice
water
water vapour
steam
Too much rain causes
A plant that needs less water
We can prevent water pollution by:
Reduce the use of plastic.
Properly dispose of chemicals.
Clean up after your animals.
All of the above
What are Decomposers?
Humus
Plants that eat grass
Plants covert dead plants and animals to humus
None of the above
If forests disappear ,the amount of _________ in air will increase.
Oxygen
Carbon-Dioxide
Nitrogen
All of the above
Which of the following statements is not correct?
Forests protect the soil from erosion.
Plants and animals in a forest are not dependent on one another.
Forests influence the climate and water cycle.
Soil helps forests to grow and regenerate.
Micro-organisms act upon the dead plants to produce
sand
mushrooms
humus
wood
Cutting down of trees on large scale is called
deforestation
floods
forest protection
Erosion
Animals help in propagation of plants by __________of seed.
Dispersal
Eating
watering
nesting
Which of the following is a medicinal plant?
Amla
Aswagandha
Neem
All of these
Through which state the Ganga river does not pass?
Uttarakhand
Uttar Pradesh
Bihar
Delhi
In which sector major percentage of freshwater is using in India?
Manufacturing sector
Agriculture sector
Construction sector
Which of the following chemicals is used by farmers to protect their crops from pests?
Pesticides
Fertilisers
Weedicides
Artificial Manure
Q.2) What percentage of the Earth is covered with water?
50%
71%
90%
Q.4) What percentage of freshwater is available for us to use?
1%
10%
3%
The place where both natural vegetation and wildlife both are preserved
Wildlife sanctuary
National Park
Biosphere reserve Park
Bird Sanctuary
Which of the following terms is used to denote animal species of a particular region or period?
Ferm
Flora
Fauna
None of these
What happens to plastic waste?
It is biodegradable material so it eventually disintegrates
There is no such thing as plastic waste, all plastic is recycled
It never fully goes away, it just breaks into little pieces
It gets dumped in the ocean for fish to eat
The USA is 2nd in emitting the most Carbon Dioxide into the atmosphere. Which country is 1st?
China
USA
UK
India
We can prevent water pollution by:
Reduce the use of plastic.
Properly dispose of chemicals.
Clean up after your animals.
All of the above
Which of these is a underground water source.
Lake
Well
Ocean
Pond
Which of these is not true about forests?
Provide home to animals
help in causing rainfall
prevent soil erosion
purify air by absorbing oxygen and releasing carbon dioxide
The removal of soil by wind or water is known as
Soil Conservation
Soil Protection
Soil Erosion
Deforestation means
large scale planting of trees
large scale cutting down of trees
both of these
none of these
Which of the following is not a source of waste water ?
sewers
homes
industries
hospitals
Pick from the following one chemical used to disinfect water.
chlorine
coal
washing soda
silica
We should not throw cooking oil and paint down the drain because
they break the pipe
they harden and clog the pipe
they flow through the drain freely
None of these
What forms the lowest layer of vegetation?
Herbs
Shrubs
Trees
All of the above
If forests disappear ,the amount of _________ in air will increase.
Oxygen
Carbon-Dioxide
Nitrogen
All of the above
Which of the following is not a forest product?
Gum
Plywood
Sealing wax
Kerosene
What is the biggest forest in the world?
Kakamega forest
Tongass National Forest
Bandipur National forest
Amazon forest
Paper is made up of
wold pulp
wood-
tree
Wood pulp
What controls floods and prevent soil erosion.
Trees
Chipko movement
wood pulp
found in
magrove forest
desert and scrub vegetation
Mountain vegetation
