« previous next »

Author Question: The main source of groundwater is A) surface water where it intersects the zone of recharge. B) ... (Read 106 times)

jerry coleman

  • Hero Member
  • *****
  • Posts: 570
on: Jul 14, 2018
The main source of groundwater is
 
  A) surface water where it intersects the zone of recharge.
  B) the zone of aeration above the water table.
  C) hygroscopic water in the soil.
  D) precipitation that percolates downward as gravitational water.

Question 2

Approximately 95 of Earth's crust is made up of
 
  A) phosphates. B) silicates. C) oxides. D) carbonates.


jlaineee

  • Sr. Member
  • ****
  • Posts: 380
Reply #1 on: Jul 14, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

A Need for Improved Water-Use Efficiency in Plants A Need for Improved Water-Use Efficiency in Plants
Claude Monet, Bridge over a Pool of Water Lilies. Claude Monet, Bridge over a Pool of Water Lilies.
Blood typing and cross-reactions. The blood type depends on the presence of surface antigens ... Blood typing and cross-reactions. The blood type depends on the presence of surface antigens ...
Disitive Time For Water Disitive Time For Water
Venus with water Venus with water
Main mechanism of carbon dioxide transport and exchange. A lesser amount of CO2 travels to the lungs Main mechanism of carbon dioxide transport and exchange. A lesser amount of CO2 travels to the lungs
Video: Cleavage and Implantation Animation

For a complete list of videos, visit our video library