4. Which of the following is a chemical change?

1. condensation

2. evaporation

3. solidifcation

4. rotting of food

True or false earths climate has not been affected by the angle of earths axis and the shape of earths elliptical orbit around the sun

How has the Eastern Mediterranean region's climate contributed to some of the problems it is facing? a. The region's climate causes natural disasters that cause economic problems for the region. b.

The use of biomass as a solution to all energy needs is limited by the non-renewability of biomass. a) a lack of technology to process and burn biomass. b) a shortage of land to grow plants for energy consumption. c) a lack of appropriate plants.

Which of the following was the single "supercontinent" which existed before individual continents broke apart from it a quarter of a billion years ago? a) Asia b) Laurasia c) Pangaea d) Gondwanaland

Which of the following geographical features is not shared by the US and Canada

The widespread presence of banana plantations in central america region has resulted in increased standard of living

Which of these has been the result of human activity? a) glaciers melt more b) volcanoes erupt more landslides happen more d) earthquakes happen more

Which types of stars have extremely intense gravitational and magnetic fields?

What happened in Russia as a result of actions taken by Peter the great

At independence, the most prosperous country of former French Western Africa was A. Chad B. Senegal C. Côte d'Ivoire D. Benin