Pieces of rock and sand settle to the bottom or sides of a river because:

they are heavier than water

they are lighter than water

gravity is stronger in a river than on land

wind blows the pieces to the bottom

Climatic conditions in Chile affect the population in which of the following ways? a. The economy relies on traditional activities such as herding and modern industries not affected by weather because the climate is ill-suited to growing most crops.

Why is the noon solar intensity greater in the summer solstice than on the winter solstice?

Which region consists of a central place and the surrounding places affected by it?

What was one reason Portugal led Europe's exploration of the world?

Calculate and compare the amount of energy retrieved by the ocean and by the atmosphere. Assume that the radius of the area is 1 m, and the density of seawater is 1028 kg m-3 and of air is 1.29 kg m-3.

Why is Dubai creating underwater resorts and reclaimed islands? Dubai has an incredible amount of money to spend on building projects. Dubai's population is growing at a very fast pace, some say too fast.

Where was the maya civilization located

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?