13. Which of the following statements best describes the characteristics of the terrestrial planets?
A. small, dense, rocky surfaces
B. large, planetary rings, many moons
C. rocky cores, close to the sun, surface craters
D. made up of hydrogen and helium, small, close to the sun

Why is the indus river so important to the people of pakistan?

How did geographic isolation affect the islands in the australasia ecozobne?

What is the most effective approach the government can take to keep the air clean? create and enforce regulations that limit fossil fuel burning by industries use funds to understand why smoke and mold are causes of outdoor air pollutants educate people about the threats to outdoor clean air from visible forms of air pollution modify regulations under the clean air act by including expensive options to reduce air pollution