Describe each characteristic of Earth which are essential to life.
1. Importance of light on the Earth _________________
2. Importance of Earth's Atmosphere ________
3. Importance of Ozone Layer _______________________
4. Favourable Climatic Condition _________________________
1. Importance of light on the Earth _________________
2. Importance of Earth's Atmosphere ________
3. Importance of Ozone Layer _______________________
4. Favourable Climatic Condition _________________________
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Answer:
1.Earth has been bathed with light from the Sun ever since; it is our most important source of energy. Sunlight warms us, causes weather patterns, allows plants to manufacture oxygen and our food from carbon dioxide and water, and it allows us to find our way around in the daytime!
2.The atmosphere protects life on earth by shielding it from incoming ultraviolet (UV) radiation, keeping the planet warm through insulation, and preventing extremes between day and night temperatures. The sun heats layers of the atmosphere causing it to convect driving air movement and weather patterns around the world.
3.Ozone protects the Earth from harmful ultraviolet (UV) rays from the Sun. Without the Ozone layer in the atmosphere, life on Earth would be very difficult. Plants cannot live and grow in heavy ultraviolet radiation, nor can the planktons that serve as food for most of the ocean life.
4.(i) Temperature : It is a tree of the tropical forests, and requires a constant high temperature above 25°C. Thus, the rubber tree cannot be grown at high altitudes. (ii) Rainfall : It needs heavy and well distributed rainfall throughout the year. The plant needs rainfall more than 200 cm.
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