What is the most abundant substance dissolved in sea water? magnesium chloride sodium chloride magnesium carbon dioxide

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Write the balanced chemical equation forphotosynthesis.