A resource that cannot be replenished by natural processes is called

The conversion of a previously soil-rich area to a sandy desert is called

The burning fossil fuels may cause all of the following EXCEPT

The sum total of the variety of organisms on Earth is referred to as

A species that enters an environment where it has not lived before is called a(an)

A species whose population size is declining so rapidly that it could soon become extinct is said to be

The concept of using natural resources at a rate that does not deplete them is called

According to biomagnification,

Which of the following is not a greenhouse gas?

Which of the following is not a renewable resource?

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