ecology - the water cycle

Question 1

where is almost all water on earth found?

Answer 1

in the oceans. this is salt water

Question 2

how does water cycle work to get water to all ecosystems?

Answer 2

• energy from sun causes water in oceans to evaporate from surface of sea
• water vapour travels into air and cools. it condenses to form clouds
• water in clouds then falls to the ground as precipitation (includes rain, snow, hail and sleet)
• when water hits ground, some evaporates back into atmosphere as water vapour where as some water passes through rocks and forms aquifers + a lot of the water forms streams or rivers
• water in rivers + streams eventually drains back into the sea

Question 3

what do all forms of precipitation contain?

Answer 3

fresh water. doesn’t contain salt

Question 4

what part do living organisms plant in role of water cycle?

Answer 4

plants take up water in their roots. water moves up the plant in the xylem + passes out of the leaves through the stomata as water vapour - transpiration
animals take in water through drinking and food. then release it through urine, in their faces and when they exhale.