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question_answer1)
A news flashed on TV that 70 people died in a/an X in Ladakh. The X here can be _____.
A)
Tsunami done
clear
B)
Sandstorm done
clear
C)
Avalanche done
clear
D)
All of these done
clear
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question_answer2)
There was a large number of dead fish drifting towards shore. Many dead birds with sticky, black coating feathers could also be seen there. A/An ____ might have occurred nearby.
A)
Tsunami done
clear
B)
Volcanic eruption done
clear
C)
Oil spill done
clear
D)
Earthquake done
clear
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question_answer3)
____ is a factor causing noise pollution.
A)
A whispering boy done
clear
B)
A crying baby done
clear
C)
A drilling machine at a construction site done
clear
D)
A moving toy car done
clear
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question_answer4)
Greenhouse gases cause global warming. Which of the following is a greenhouse gas?
A)
Oxygen done
clear
B)
Nitrogen done
clear
C)
Carbon dioxide done
clear
D)
Magnesium oxide done
clear
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question_answer5)
Select the method that prevents soil erosion by water.
A)
Terrace farming done
clear
B)
Wind breaks done
clear
C)
Embankments done
clear
D)
Both (a) and (c) done
clear
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question_answer6)
Select the incorrect statement regarding water pollution.
A)
Suspended impurities make water less transparent causing death of submerged aquatic plants. done
clear
B)
Polluted water can cause diseases like typhoid, cholera and diabetes. done
clear
C)
Pollution decreases dissolved oxygen content of water. done
clear
D)
Agricultural runoff pollutes water by adding pesticides and fertilizers into it. done
clear
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question_answer7)
When oxides of nitrogen and sulphur react with water vapour in the air they cause ______.
A)
Ozone depletion done
clear
B)
Global warming done
clear
C)
Acid rain done
clear
D)
Oil spill done
clear
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question_answer8)
If an earthquake occurs, which of the following you should not do?
A)
If you are indoors, stay in and get under a desk or a table. done
clear
B)
If you are outdoors, stay away from trees and buildings. done
clear
C)
If you are on a beach, get into the sea. done
clear
D)
All of these done
clear
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question_answer9)
The given picture shows terrace farming. It helps in _____.
A)
Reducing soil erosion by using non- arable land done
clear
B)
Reducing soil erosion by water done
clear
C)
Reducing soil erosion by overgrazing done
clear
D)
Reducing soil erosion by deforestation done
clear
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question_answer10)
Man carries out deforestation to provide space for buildings and farms. Some also cut down trees to provide wood for furniture and paper manufacturing. Which of the following would possibly result from the above activities?
(i) Top soil erosion may occur. |
(ii) Some animals may become extinct. |
(iii) There may arise a problem of global warming. |
(iv) Some possible sources of natural drugs to cure diseases may be lost. |
A)
(i) and (ii) only done
clear
B)
(iii) and (iv) only done
clear
C)
(i), (ii) and (iii) only done
clear
D)
(i), (ii), (iii) and (iv) done
clear
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question_answer11)
Which of the following statements is correct?
A)
The mantle or the upper layer of the Earth is made of volcanoes. done
clear
B)
The liquid that comes out of a volcano is called magma. done
clear
C)
Based on the nature of eruption, volcanoes can be active, dormant or extinct. done
clear
D)
The magnitude of tsunami is measured on Richter Scale developed by Charles Richter in 1985. done
clear
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question_answer12)
Which one of the following pairs is wrongly classified?
A)
B)
C)
D)
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question_answer13)
Ali studied two groups of things as shown in the table below.
Biodegradable | Non-biodegradable |
Fruit Peel | Gold chain |
Meat | Polybag |
Dairy products | Aluminium can |
He made the following inferences. Which one of the inferences is correct?
A)
All non-biodegradable objects are hard. done
clear
B)
All living things are non-biodegradable. done
clear
C)
Biodegradable objects come only from animals. done
clear
D)
Most things obtained from living organisms are biodegradable. done
clear
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question_answer14)
Which of the things listed below are biodegradable?
(i) Wooden log | (ii) Plastic bag |
(iii) Gold necklace | (iv) Roasted chicken |
(v) Credit card | (vi) Apple |
A)
(i) and (ii) only done
clear
B)
(iii) and (iv) only done
clear
C)
(iii), (iv) and (v) only done
clear
D)
(i), (iv) and (vi) only done
clear
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question_answer15)
The given options show the bacterial count, oxygen level and the number of green plants and animals in the river near each of four towns A, B, C and D. Which town is situated near an unpolluted river?
A)
B)
C)
D)
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question_answer16)
The given graph shows the changes in the population of an insect found on a Jackfruit tree after four different sprayings of the same insecticide.
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What conclusion can you draw from the graph?
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A)
The insecticide had no effect on the insects at all. done
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B)
The insect population had become resistant to the insecticide. done
clear
C)
The insect population increased as the wrong type of insecticide was used. done
clear
D)
The insecticide helped to reduce the number of insects permanently. done
clear
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question_answer17)
A large area of forest was destroyed completely by forest fire. Which of the following statements hold(s) true regarding it?
(i) More soil will be eroded as the soil is not protected by trees from wind and rain. |
(ii) The land will have more fresh air as there are lesser trees to take in oxygen. |
(iii) Wildlife will inhabit the cleared area because more space is available now. |
(iv) New trees will grow quickly to replace the burnt ones as the ash of the burnt trees will make the soil more fertile. |
A)
(i) only done
clear
B)
(i) and (iv) only done
clear
C)
(i), (ii) and (iv) only done
clear
D)
(i), (ii), (iii) and (iv) done
clear
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question_answer18)
DIRECTION: Refer to the given word grid and answer the question. |
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Select the option that is not hidden in the given word grid.
A)
Rays of SUN that cause cancer done
clear
B)
A gas that can cause global warming done
clear
C)
A method that prevents soil erosion by wind done
clear
D)
A calamity that occurs when an earthquake occurs under sea done
clear
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question_answer19)
DIRECTION: Refer to the given word grid and answer the question. |
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The term used for _______ can be found in the given word grid.
A)
The process of clearing forests done
clear
B)
Rain which is acidic in nature done
clear
C)
The process of re-establishing a cleared forest done
clear
D)
Materials that get decomposed when thrown done
clear
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question_answer20)
Scientists were studying two types of hospital waste, X and Y for their disposal and their effect on environment. They plotted a graph showing change in their quantities over time, when dumped in an open field. Refer to the given graph and select the option that correctly identifies X and Y.
A)
B)
C)
D)
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