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Answers
Answer:
6. yes ozone layer will protect us from harmful rays of sun.we have to use sun screen because if the direct sun light touches our body the part where it touches get black.
Answer:
4.
a. ☆Nitrogen-78%
☆Oxygen-21%
☆Argon-0.93%
☆Carbon dioxide-0.04%
☆Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapour.
b. Dust is a vital component of the atmosphere for many reasons. One is providing something for water to condense on. A lot of people don't realise that if it wasn't for pariculate matter such as dust and smoke, we would have no clouds and precipitation. If enough dust gathers in the atmosphere, it can block radiation.
c. A luminous cloud of a kind occasionally seen at night in summer in high latitudes, at the altitude of the menopause.
d. The boundary in the earth's atmosphere between the mesosphere and the thermosphere, which the temparature stops decreasing with increasing height and begins to increase.
e. The thermopause is the atmospheric boundary of earth's energy system, located at the thermosphere. Below this, the atmosphere is defined to be active on the insolation received, due to the increased presence of heavier gasses
such as monatomic Oxygen.
Explanation:
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