Choose the characteristic of living things that you think is most important. Explain why you chose that characteristic.

Reproduction

Explanation:

Reproduction is a very important process which can only be carried out by living things. It plays a crucial part in ensuring the species does not go extinct because only through reproduction can you make copies of the certain being.

A) Water B) Habitat

Explanation: One of the first things scientist consider when discovering new planets is a source of water. WIthout water there is no possibility at all for life. Every living thing from cyanobacteria to the biggest living thing on earth all need water to survive. Additionally, without a liveable habitat suited to that of the organism living there, it is certain that life would not be sustainable. However, water is the most important by far.

it would lead to upper respiratory infections and pneumonia.

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.