How does filtration occur during the formation of urine?

a.
pressure causes water and dissolved substances to filter through capillary walls of the glomerulus.
b.
nephron tubes filter waste products and transfer them into the collecting tubules.
c.
gravity forces large particles to filter through capillary walls of the glomerulus.
d.
bowman's capsules collect dissolved substances and transfer them to the peritubular capillaries.

A. Pressure causes water and dissolved substances to filter through capillary walls of the glomerulus.

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

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.