Author Question: Earth's biodiversity remains a reservoir for ________. A) water and waste production by humans ... (Read 40 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
Earth's biodiversity remains a reservoir for ________.
 
  A) water and waste production by humans
  B) pests and disease
  C) habitat extinction and species destruction
  D) foods and medicines
  E) oil and coal

Question 2

When examining the Keeling Curve in the accompanying graph, one notices a zigzag upward-moving curve. What do these small up and down movements indicate?
 
  A) weather-related factors affecting CO2
  B) seasonal cycles in CO2 concentrations
  C) O2 versus CO2 concentrations
  D) latitudinal differences in CO2 concentrations
  E) uncertainty in the CO2 conditions


britb2u

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

For a complete list of videos, visit our video library