Studied by 5 people
The ________ have an important role in preventing soil erosion.
roots of plants
Vegetative cover
________ on the ground has a role to play in the percolation of water into the deeper layers too.
________ are used to a certain range of temperature in the water- body where they live, and a sudden marked change in this temperature would be dangerous for them or affect their breeding.
Aquatic organisms
normal diatomic molecule
Unlike the ________ of oxygen, ozone is poisonous and we are lucky that it is not stable nearer to the Earths surface.
________ generally take up nitrates and nitrites and convert them into amino acids which are used to make proteins.
Plants
All ________ take place in a water medium.
cellular processes
________ is found in various forms on the Earth.
Carbon
The ________ and exoskeletons of various animals are also formed from carbonate salts.
endoskeletons
The ________ is the region of the Earth that supports life and is where the interactions between the hydrosphere, lithosphere, and atmosphere occur.
biosphere
During lightning, the ________ and pressures created in the air convert nitrogen into oxides of nitrogen.
high temperatures
In large parts of India, rains are mostly brought by the ________ .
southwest or north- east monsoon winds
The air, the water and the soil form the non- living or ________ of the biosphere.
abiotic component
fossil fuels
The ________ like coal and petroleum contain small amounts of nitrogen and sulphur.
________ are decided by the prevailing wind patterns.
Rainfall patterns
Living things constitute the ________ of the biosphere.
biotic component
________ makes up 78 % of our atmosphere and nitrogen is also a part of many molecules essential to life like proteins, nucleic acids (DNA and RNA) and some vitamins.
Nitrogen gas
________ is one of the greenhouse gases.
Carbon dioxide
In the presence of sunlight, green plants convert ________ into glucose.
carbon dioxide
Note 
Flashcard (28)