is it clothes? water? air????
wich is it?
2007-05-18 17:25:17 · 11 answers · asked by gennes_1111 1 in Science & Mathematics ➔ Earth Sciences & Geology
Sun. Without sun, the earth is cold, water formed ice. No water no life. In the ancient earth, there was no or very little oxygen supplied. But blue green algae still can survive with the presence of sunlight and water by undergoing anaerobic respiration (respiration without oxygen). And they make their own food through photosynthesis that produce oxygen. We knew that plant is the one who created the Earth's oxygen-rich atmosphere. So to get oxygen, we need plant and plant need water (melted from ice) and sunlight. Hence, I suggest sun.
2007-05-18 18:47:23 · answer #1 · answered by ♂ smalcộộkies 2 · 0⤊ 0⤋
well, in my opinion it's atmosphere (air) because we CAN live without clothes, and we can go for 2 or 3 days without water but we CAN NOT live without air cause we will die if we don't breath in (at last) in 5 minutes.
2007-05-18 17:34:35 · answer #2 · answered by jessica_elenita 2 · 0⤊ 0⤋
basic needs for us human to survive...1) food ; 2) shelter ; 3) clothes...water and air is already exist all we have to do is to protect them because obviously water and air is very much important to us.
2007-05-18 17:36:35 · answer #3 · answered by cutieperl 2 · 0⤊ 0⤋
water air
2007-05-18 17:28:38 · answer #4 · answered by pokemon maniac 6 · 1⤊ 0⤋
carbon is the most important things for living things but for materialistic things it would be air, water, and food
2007-05-18 17:32:46 · answer #5 · answered by Anonymous · 0⤊ 0⤋
My guess would be air. I remember my army days' 3/3/30 survival rule:
You can live about 3 minutes without air.
You can live about 3 days without water.
You can live about 30 days without food.
Shelter and clothes you can live without unless it gets too cold.
Home this helps!
2007-05-18 17:31:12 · answer #6 · answered by Richard of Fort Bend 5 · 1⤊ 0⤋
water and air, because all living things need water to drink and need oxygen or carbon dioxide (plant) to breath.
2007-05-18 23:11:03 · answer #7 · answered by jason 4 · 0⤊ 0⤋
The Humans I hope
2007-05-18 18:55:59 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Water, atmosphere, and plate tectonics.
2007-05-18 17:30:50 · answer #9 · answered by Lady Geologist 7 · 0⤊ 0⤋
love
check out www.lost.eu/38a84
2007-05-18 17:33:50 · answer #10 · answered by ♥♥♥♥Rebel Racin' Gal♥♥♥♥♥ 2 · 0⤊ 0⤋