3. Water that evaporated from a tropical sea can later fall as snow over an Arctic landmass. This is because water vapor in
Earth's atmosphere is moved around the globe by air
currents. The differences in temperature that cause air
currents are created by —

Afarmer has applied a pesticide to control a pest population that is affecting her crops. the pest population has reacted as shown below. which best describes the process that the pest population has experienced due to this environmental change? a genetic diversity b natural selection c natural resistance d genetic resistance

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?