An important property of air circulation is

a. warm air is denser than cold air.

b. cold air and warm air have the same density.

c. cold air is denser than warm air.

d. air has no mass.

What features are created when rivers enter the ocean?

Identify and locate China's natural barriers and landforms. What role have they played in China's development?

In an undisturbed sequence of rocks, which layer will be the oldest?

How extreme is frost free growing season?

Which countries does Central America border?

Which explains upwelling in the oceans? a. coastal winds blow cold surface water out to sea. deeper, nutrient-rich, warm water flows upward to replace the surface water. b. wind near the coastline blows warm surface water away from the land.

Sedimentary rocks blank. form below the crust

The lands the Netherlands have reclaimed from the sea are known as polders. True False

Where is rice grown and the percentage of production those countries produce

What force acts again capillary action as water moves through the ground