Six of the seven species of sea turtles are in danger of becoming extinct, mostly due to ____.
A. female sea turtles not laying large enough clutches of eggs
B. lower sea levels in the past 100 years
C. human activities that occurred over 100 years ago
D. human impacts on their environment taking place during the last 100 years
E. impacts from giant asteroids
Answer: D
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The fossil record shows no significant change in terms of the diversity of organisms through
time. Indicate whether the statement is true or false.
We are likely to have our highest relative humidity ________
during mid-afternoon around midnight about sunrise at noon
Which of the following represents a potentially sustainable process?
A) The transformation of oil into heat energy in a power plant B) The generation of wastes as a byproduct of human consumption C) The release of heat into the atmosphere D) The recycling of materials generated by human consumption
Which was the most disastrous dam failure in recent decades?
a. ?Lake Vyrnwy Dam in Wales b. ?Gordon Dam in Tasmania c. ?Cougar Dam in Oregon d. ?Banqiao Dam in China e. ?Buffalo Bill Dam in Wyoming