1. Moist air
2. The less dense air, the less oxygen (at least that's what my teacher says)
Answer:
Explanation:
A survey is a data collection tool used to gather information about individuals. Surveys are commonly used in psychology research to collect self-report data from study participants. A survey may focus on factual information about individuals, or it might aim to obtain the opinions of the survey takers.
Answer:
The correct answer would be the third option.
One of the hypotheses regarding the origin of life is "organic molecules from outer space".
Under this concept, it is believed that organic compounds might have come on earth through meteorites. Then these organic compounds were used as the precursors of the living cells.
Certain pieces of evidence are also found to support this concept.
For example, scientists have experimentally proved that conditions like low temperature and high UV radiations (similar conditions as exist in outer space) can result in the production of organic molecules from simple chemical precursors as present in space.
In addition, some organic compounds have also been found in space or other star systems.
