The density of freshwater is ____________ than the density of seawater. Fill in the blank(s) with the appropriate word(s)

The more similar the sizes of each cohort on a population's age-sex pyramid, the closer that population's rate of natural increase is to zero

Indicate whether this statement is true or false.

The value added to raw materials in the secondary and tertiary sectors quickly surpasses the value of the original raw materials, whether the raw materials are mineral or agricultural

Indicate whether the statement is true or false.

When two continental plates collide the result is the formation of new ocean crust

Indicate whether the statement is true or false

What is permafrost?

A. the upper part of the ground that remains frozen throughout the year B. ice and snow that exist throughout the entire year C. curly crystals of frost that form early in the morning D. ice and snow that are permanently in motion