All the organic compound differs from inorganic compound by carbon composition.
Answer: Option A
<u>Explanation:</u>
An organic compound is a compound which is composed of one carbon particles binded with different components. Most generally, these carbon molecules are clung to hydrogen, oxygen and nitrogen particles. On the other hand, an inorganic compound is not basically made out of carbon molecules.
There can be either carbon atoms present or missing. Thus it can be inferred that the presence and absence of carbon determines whether a compound is inorganic or organic.
Answer:
Planting trees, CARBON CYCLE, and cooking with gas do not add Carbon dioxide to the atmosphere.
Explanation:
The atmosphere naturally breathes or decomposes carbon dioxide rocks, whereas forest fire takes place and volcanoes erupt.
The atmosphere is naturally decomposed. Human activities like fossil fuel and forest burning, and cement production, also add carbon dioxide to the atmosphere.
<u>Answer:</u>
The main function of the ozone layer is to block most of the sun's damaging rays from reaching Earth.
Option: (b)
<u>Explanation:</u>
- The stratosphere containing high level of ozone molecules about 30 km to 50 km altitude helps to absorb the sun's ultra violate rays.
- In its absence, it would be very difficult for anything to survive. Plants cannot live and grow as the UV light causes weakening of plants.
- It causes skin cancers. The increase in UV flux will lead to increase in sunburn, blindness, cataract, causing potentially death of animals and plants.
