By the End of the 20^th Century, the World's Population

question 42

Multiple Choice

By the end of the 20^th century, the world's population exceeded 7.4 billion, with Canada representing

• A) less than 0.5 percent
• B) slightly more than 5 percent
• C) about 320 million
• D) less than 3.2 million

---

Definitions:

Osmotic Diuretics

Substances that increase urine output by attracting and retaining water in the renal tubules.

ADH Inhibitors

Substances that reduce the effect or production of antidiuretic hormone, leading to increased urine output.

Plasma Clearance

The volume of plasma from which a substance is completely removed per unit time, indicating the efficiency of elimination by the kidneys or other body systems.

Inulin

A type of soluble fiber found in various plants, used as a dietary fiber and sometimes for testing kidney function.