Question

About 3% of the water on Earth is freshwater. Only about 40% of that freshwater is available for human use. Why is so much freshwater unavailable for human use? A) It is frozen. B) It is polluted. C) It is salt water. D) It is in aquifers. 2) The deepest place in the seafloor is called the A) abyssal plain. B) Marianas Trench. C) Aleutian Trench. D) hydrothermal vent. 3) Tides are caused by A) gravity. B) heat. C) waves. D) winds.

Answer 1

I believe the answer you're looking for is B. It's Polluted. I hope this helps.

Answer 2

These are the correct answers you guys can definitely trust me on:

#1. It is frozen, when we need it, people with cut it out

#2. The deepest part of the ocean in the Mariana's Trench

#3. Gravity: Tides are caused by the gravitational interaction between the Earth and the Moon. The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon.