Which of the following is the largest factor involved in causing species to become endangered?
A. habitat loss
B. pollution
C. climate change
D. overexploitation
Answer: A
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Most job layoffs occur as a result of
A. Import competition B. Seasonal work C. Contract cancellation D. Bankruptcy E. Material shortages
The longest wavelength of the electromagnetic spectrum corresponds to the color ____
A) blue B) violet C) red D) yellow
Which of the following is an example of an age-relationship based on relative dating?
A) Australopithecines were alive 3.2 million years ago. B) The Neanderthals became extinct 35,000 years ago. C) Australopithecines evolved before Homo erectus. D) Clovis points have been dated at 11,000 years old in North America.
________ feedback tends to stabilize systems
A) Negative B) Exponential C) Positive D) Logarithmic E) Neutral