A scientist should be willing to change his theory if the evidence does not support it.

a. trueb. false

Populations are positively and negatively affected by a variety of biotic and abiotic factors, including the cycles of matter.

Which of the following is not a place where hydrogen can be found on Earth? A. Natural gas well B. Atmosphere C. Water D. Mine

Problems children and women refugees may experience without the protection of their home and support

The worlds fifth fashion capital had arisen in which country

Which government has local offices

What field of study shows that the continents had different geographic positions?

If the earth did not rotate where would the air naturally flow from?

Whats one reason many native born americans were in favor of restricting immigration'

What are the characteristics of less-developed countries?

Select the correct answer. Which of the following statements most accurately describes current population trends in Russia? A. The population is increasing due to immigration from neighboring countries. B.