Air mass, letter a is the correct one
The rock must be granite.
The correct answer is - east to west.
The trade winds are located between the Equator and the mid-latitudes, or rather in the tropical zone. They are found on both, the North Hemisphere and the South Hemisphere.
In the North Hemisphere, the trade winds are also called northeasterly trades. They move in a roughly east to west direction, beginning from the northern parts of the tropical zone, getting southwards, and then make a turn towards the west.
Answer:
Which statement describes clean air as a natural resource?
Clean air reduces the risk of illnesses and other health problems.
The answer is a stream. The water leaves a lake through a stream to maintain the freshness of the lake waer. A stream is where the water flows downhill from an open lake. An open lake is where the water flows constantly so that the water is fresh.
