The global temperature trend has been generally upward since the last ice age, but the rate of increase has recently

accelerated.
a. True
b. False


True

Environmental & Atmospheric Sciences

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____ are responsible for the vast majority of the ocean's primary productivity

A) Seaweeds B) Chemosynthetic organisms C) Extremophiles D) Phytoplankton

Environmental & Atmospheric Sciences

A graph of a population growing at a positive constant rate would most resemble a

A. straight vertical line. B. J-shaped curve. C. straight horizontal line. D. rising straight line.

Environmental & Atmospheric Sciences

When the lower string is pulled slowly in the heavy-ball-and-strings demonstration (Figure 2.7 in your textbook), tension

A. is about the same in both strings. B. in the top string is due to your pull plus the weight of the ball. C. in the bottom string is zero. D. none of the above

Environmental & Atmospheric Sciences

Which animal is considered to be a suspension feeder?

A) Fish B) Sea stars C) Sponges D) None of these choices

Environmental & Atmospheric Sciences