Question:
Fill In the Blanks :
The space among the soil particles are filled with ________.
Natural Resources
Q 1.
Fill In the Blanks :
The life-supporting zone of the Earth where the atmosphere, the hydrosphere and the lithosphere interact and make life possible, is known as the ____________.
Q 2.
What is lithosphere?
Q 3.
How do fossil fuel cause air pollution?
Q 4.
How does the atmosphere act as a blanket?
Q 5.
Fill In the Blanks :
The life-supporting zone of the Earth where the atmosphere, hydrosphere and lithosphere interact and make life possible. ________
Q 6.
Fill In the Blanks :
The eggs and larvae of various aquatic animals are particularly susceptible to _____________ changes.
Q 7.
Name two diseases caused due to an increased content of pollutants in the air produced due to the burning of fossil fuels.
Q 8.
What is hydrosphere?
Q 9.
Fill In the Blanks :
Hot air is ___________ than cold air.
Q 10.
Fill In the Blanks :
Control of water and electrolyte balance in the body. ________
Q 11.
Fill In the Blanks :
An increase in the content of these harmful substances in air is called ________ ?
Q 12.
Fill In the Blanks :
The fossil fuels like coal and petroleum contain small amounts of __________ and __________ which are primarily responsible for acid rain.
Q 13.
Fill In the Blanks :
The region which includes all the earth's liquid water, frozen water and small amounts of water vapor in the earth's atmosphere. ________
Q 14.
Fill In the Blanks :
The cyclic transformation of chemicals through interacting biological, geological and chemical processes that causes transfer of energy and matter amid the various components of the biosphere, leading to a balance between them. ________
Q 15.
Fill In the Blanks :
The living components of the environment. ________
Q 16.
Water is known as "A Wonder Liquid". Justify this statement by giving any two reasons.
Q 17.
What is atmosphere?
Q 18.
What is meant by depletion of ozone layer? Mention one important feature of ozone in atmosphere. Identify the factors responsible for the formation of ozone hole.
Q 19.
List any three human activities that you think would lead to air pollution.
Q 20.
Fill In the Blanks :
The space among the soil particles are filled with ________.
Q 21.
Fill In the Blanks :
Dead remains of plants and animals is called __________.
Q 22.
Fill In the Blanks :
On planets like Venus and Mars the major component of the atmosphere is ___________.
Q 23.
In which regions is soil erosion very difficult to revert?
Q 24.
Which gets heated faster land or water?
Q 25.
What are the effects of acid rain?
Q 26.
Fill In the Blanks :
In the upper layer of the atmosphere, a molecule containing three atoms of oxygen is found. It is called ________.
Q 27.
Define air-pollution?
Q 28.
Fill In the Blanks :
_________ is the region of atmosphere where ozone layer is present.
Q 29.
Fill In the Blanks :
The mass of air surrounding the Earth. ________
Q 30.
Why do organisms need water?
Q 31.
List the four zones of the atmosphere.
Q 33.
Fill In the Blanks :
The non-living components of the environment. ________
Q 34.
Fill In the Blanks :
________ is formed due to condensation of water vapours in the lower region of atmosphere.
Q 35.
How is our atmosphere different from the atmosphere on Venus and Mars?
Q 36.
Why is water essential for life?
Q 37.
Fill In the Blanks :
__________ is a major factor in deciding the soil structure because it causes the soil to become more porous and allows water and air to penetrate deep underground.
Q 38.
Fill In the Blanks :
Green plants convert carbon dioxide into glucose in the presence of ______________.
Q 39.
Fill In the Blanks :
A process in which anaerobic bacteria convert nitrate ions into nitrogen gas. ________
Q 40.
What are biogeochemic cycles? Names two examples.
Q 41.
Fill In the Blanks :
Soil contains bits of decayed living organisms which is called ________ ?
Q 43.
Fill In the Blanks :
The outer crust of the Earth. ________
Q 44.
Fill In the Blanks :
An increase in the percentage of such gases in the atmosphere would cause the average temperatures to increase world-wide and this is called ________?
Q 45.
Give an example of fungi which are known as 'indicator of air pollution'.
Q 46.
Fill In the Blanks :
The substances that cause pollution are called ___________.
Q 47.
Fill In the Blanks :
Ozone hole was first detected over ____________.
Q 48.
Fill In the Blanks :
Specific Organisms are found to be very sensitive to the levels of contaminants like sulphur dioxide in the air. What are these organisms called ________?
Q 49.
Fill In the Blanks :
Water covers _____% of the Earth's surface.
Q 50.
How are clouds formed?