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0% Class-5 - Science-Natural Resources and Calamities-1 1 / 20 Why is organic matter (humus) an important part of soil? It can break down organic pollutants It converts nitrogen in the air into nitrates used by plants It is rich in nutrients, which is important for fertility It helps to improve water infiltration 2 / 20 Coal, when burnt, produces: Thermal energy Chemical potential energy Electric energy Kinetic energy 3 / 20 Which of the following factors is/are responsible for the depletion of the world's natural resources? i. Increasing numbers of vehicles in use ii. An increase in the human population iii. The greater use of biodegradable products i only ii and iii both iii only i and iii both 4 / 20 _____ helps the environment by slowing down the rate at which we have to burn garbage or put it in landfills. Reusing None of the above Recycling Reducing 5 / 20 Name the mineral which is used to reduce cavity. Silicon Aluminium oxide Fluorite Limestone 6 / 20 Which energy source below best fits the information in the chart? Type of energy: Advantages Disadvantages Simple to transport Air and water pollution Supply available for 250 more years Habitat destruction Hydro Tidal Coal Wind 7 / 20 The death of the last individual of a species is called Neither A nor B Species diversity Clad Extinction 8 / 20 The water holding capacity is highest in: Clayey soil None of the above Sandy soil Loamy soil 9 / 20 A place where an earthquake originates is called the Fault Line Tsunami Epicenter Focus 10 / 20 A flash flood is a flood that: Is caused by heavy rain rather than from the flooding of a river Is caused by the blocking of drains Occurs suddenly and unexpectedly and for a short duration Occurs in urban areas 11 / 20 Which of the following is an environmental consequence of floods? All of the above Release of pollutants into waterways Dispersal of weed species Erosion of soil 12 / 20 Terrace farming helps in: Reducing soil erosion by water Reducing soil erosion by deforestation Reducing soil erosion by using non-arable land Reducing soil erosion by overgrazing 13 / 20 Which of the following statements is false? Weather forecasts are more accurate in Melbourne than in Darwin Forecasts of temperature are more accurate than forecasts of rainfall Weather forecasts for a small region are more accurate than those for a large region All of the above 14 / 20 A dark-coloured substance formed from dead remains of plants and animals is called _____ Gravel Humus Loam Clay 15 / 20 Which out of the following is derived from the ocean waters? Cobalt Limestone Bromine Sandstone 16 / 20 Where is the largest solar plant of India located? Maharashtra Rajasthan Odisha Gujarat 17 / 20 _____ is the major raw material for biogas. Mud Plant leaves Cow dung Grass 18 / 20 What is soil erosion? A process often referred to as the greenhouse effect A natural method of filtering harmful pollutants A harmful process that involves the removal and transport of soil by wind and water It is the process by which soil is formed 19 / 20 Which of the following layers of soil supports plant growth? Topsoil None of the above Bedrock Subsoil 20 / 20 Which one of the following is not a fossil fuel? Coal Natural gas Uranium Petrol Your score is 0% Restart quiz
Class-5 - Science-Natural Resources and Calamities-1
1 / 20
Why is organic matter (humus) an important part of soil?
2 / 20
Coal, when burnt, produces:
3 / 20
Which of the following factors is/are responsible for the depletion of the world's natural resources? i. Increasing numbers of vehicles in use ii. An increase in the human population iii. The greater use of biodegradable products
4 / 20
_____ helps the environment by slowing down the rate at which we have to burn garbage or put it in landfills.
5 / 20
Name the mineral which is used to reduce cavity.
6 / 20
Which energy source below best fits the information in the chart? Type of energy: Advantages Disadvantages Simple to transport Air and water pollution Supply available for 250 more years Habitat destruction
7 / 20
The death of the last individual of a species is called
8 / 20
The water holding capacity is highest in:
9 / 20
A place where an earthquake originates is called the
10 / 20
A flash flood is a flood that:
11 / 20
Which of the following is an environmental consequence of floods?
12 / 20
Terrace farming helps in:
13 / 20
Which of the following statements is false?
14 / 20
A dark-coloured substance formed from dead remains of plants and animals is called _____
15 / 20
Which out of the following is derived from the ocean waters?
16 / 20
Where is the largest solar plant of India located?
17 / 20
_____ is the major raw material for biogas.
18 / 20
What is soil erosion?
19 / 20
Which of the following layers of soil supports plant growth?
20 / 20
Which one of the following is not a fossil fuel?
Your score is
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