I'm pretty sure that it's the ozone layer, because Oxygen is O2 and Ozone is O3.
Answer:
Precipitation infiltrates into the subsurface via sinkholes and flows through subterranean passages to the Green River Valley.
Explanation:
Precipitation: The greatest factor controlling infiltration is the amount and characteristics (intensity, duration, etc.) of precipitation that falls as rain or snow. Precipitation that infiltrates into the ground often seeps into streambeds over an extended period of time.
As precipitation infiltrates into the subsurface soil, it generally forms an unsaturated zone and a saturated zone. In the unsaturated zone, the voids—that is, the spaces between grains of gravel, sand, silt, clay, and cracks within rocks—contain both air and water. Although a lot of water can be present in the unsaturated zone, this water cannot be pumped by wells because it is held too tightly by capillary forces.
The upper part of the unsaturated zone is the soil-water zone. The soil zone is crisscrossed by roots, openings left by decayed roots, and animal and worm burrows, which allow the precipitation to infiltrate into the soil zone.
Water in the soil is used by plants in life functions and leaf transpiration, but it also can evaporate directly to the atmosphere. Below the unsaturated zone is a saturated zone where water completely fills the voids between rock and soil particles.
Use the Pythagorean Theorem (a2 + b2 = c2), where a and b are the leg lengths and c is the hypotenuse, therefore:
a2 + b2 = c2, a=4, b=7, c=?
4x4 + 7x7 = c2
16 + 49 = c2
c = √65
so c = 8.06
I think it is false because that is not true
