characteristics of earth that support life

Question 1

why does the distance to the sun matter so much

Answer 1

we need the right temperature, we need liquid water, and we need energy

Question 2

what is the “habitable zone” for life to be present on a planet called?

Answer 2

“goldilocks zone”

Question 3

what is the distance from the sun to the earth

Answer 3

93 million miles(491040 million feet)

Question 4

why do we need liquid water?

Answer 4

cells need it to do basic tasks, and water is used in a lot of energy processes(water, carbon, rock), which is another criteria for life

Question 5

what is the atmosphere made of(EXACT)

Answer 5

~78% nitrogen, ~21% oxygen, <1% others

Question 6

what layer protects us from UV radiation?

Answer 6

ozone layer

Question 7

what prevents us from freezing to death every night by trapping heat inside the earth’s atmosphere

Answer 7

greenhouse gases: carbon dioxide(CO2), methane(CH4), carbon monoxide(CO), nitrous oxide(N20)