Nuclear fusion reactions combine hydrogen to helium
The current population of the United States of America is 325,372,521 as of Thursday, January 12, 2017, based on the latest United Nations estimates.
Answer: Excessive tariffs harm international trade. For countries that are dependent on exports to fund their economy, trade barriers can be detrimental to their economies. This creates a supply surplus. Businesses are then forced to sell products at a cheap price.
The answer is B.
During plate tectonics, cracks may occur in the earth crust that causes magma to rise up from the mantle. The cracks may also cause cracks to form on the crust that makes outlet channels for the magma in magma chambers. These result in volcanic eruptions on the surface of the earth that form volcanic features such as mountains.
