The force of a falling watermelon hitting the ground depends upon
A. the time of contact with the ground.
B. the speed of the watermelon just before it hits the ground.
C. whether or not the watermelon bounces.
D. all of the above
Answer: D
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The tropical rainforest terrestrial ecosystem has been disturbed by human activity more than any other
Indicate whether the statement is true or false
Which one of the following industries was not directly impacted by the onset of the Industrial Revolution?
A) coal B) iron C) transportation D) textiles E) tourism
Which biome once extended continuously from Alberta, Canada to Texas in North America?
a. broadleaf deciduous forest b. coniferous forest c. tall-grass prairie d. desert e. tundra
Toxicity is
a. the study of the effects of poisonous substances. b. any toxic agent. c. any substance that causes environmental degradation. d. the degree of harm a substance can cause.