What role do aquifers play in the water cycle?
a.
they store water in the ground.
b.
they transfer water to the air.
c.
they are the main source of water on earth.
d.
they move water through capillarity.

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

What organ systems are working to you cool down after a workout?

Asolution containing hci would likely have