________ _______ or ________ - the number of plant and animal species present and the variety of genetic materials these organisms contain
Fill in the blank(s) with correct word
Biological diversity or biodiversity
Environmental & Atmospheric Sciences
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What causes the precipitation shifts of seasonally humid tropical climates?
What will be an ideal response?
Environmental & Atmospheric Sciences
Gradual climate change is not caused by changes in Earth's ________.
A. obliquity B. volcanic activity C. eccentricity D. precession
Environmental & Atmospheric Sciences
What is the definition of true progress for our entire planet?
What will be an ideal response?
Environmental & Atmospheric Sciences
Some plastics accumulate poisons such as DDT and PCBs to levels as high as a ________ times their concentrations in seawater
A) fifty B) one hundred C) one thousand D) one million E) one billion
Environmental & Atmospheric Sciences