Question

11. Answer the following questions in about 50-60 words: (11 x 2 = 22 marks)
a) Describe the components of the environment that make life possible on the earth.
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Answer 1

Answer:

The basic components of the environment are atmosphere or the air, lithosphere or the rocks and soil, hydrosphere or the water, and the living component of the environment or the biosphere

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Explanation:

Answer 2

Answer:

Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun. Our atmosphere contains water vapor which helps to moderate our daily temperatures. Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen, and .9% argon. The other 0.1% consists of water vapor, carbon dioxide, neon, methane, krypton, helium, xenon, hydrogen, nitrous oxide, carbon monoxide, nitrogen dioxide, sulfur dioxide, and ozone. These latter elements are important to have because they help to absorb harmful solar radiation before it can reach the surface of the Earth. If present in larger amounts, most of these latter elements would be poisonous to humans. The atmosphere protects us from meteors as well. Due to the friction generated between a meteor and the atmospheric gases, most meteors burn up before hitting Earth's surface as a meteorite.