Which Two Gases Account for More Than 90% of Changes

question 63

Multiple Choice

Which two gases account for more than 90% of changes in the greenhouse effect?

• A) methane and carbon dioxide
• B) methane and nitrogen
• C) carbon dioxide and water
• D) carbon dioxide and nitrogen

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Definitions:

Fecal Occult Blood

The presence of blood in the feces that is not visible to the naked eye, often a sign of gastrointestinal diseases.

False-negative

A test result that incorrectly indicates the absence of a condition or disease when it is actually present.

Colostomies

Surgical procedures that create an opening from the colon to the surface of the abdomen, allowing for the diversion of bowel contents.

Stoma

An artificially created opening in the body, such as for the discharge of body wastes, often related to procedures like colostomies or urostomies.