The primary threat to polar bears is pollution from oil spills in Arctic waters
Indicate whether the statement is true or false
F
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When the net force on an object equals zero, its acceleration
A. is zero. B. and velocity are the same. C. may be zero. D. none of the above
Which of the following is correct regarding mean sea level?
A) A consistent value has yet to be determined due to all the variables involved in producing the tides. B) It is at the same level along the entire North American coast. C) It is calculated based on average tidal levels recorded hourly at a given site over a period of many years. D) It has very little variability across all ocean basins and, therefore, is treated as an absolute value.
An S-shaped population growth curve best describes ________
A) exponential growth B) logistic growth C) slow and constantly changing growth D) rapid and steady rate growth E) unlimited growth
Which of the following is not usually found in highland locations as compared to their surrounding lowlands?
A) Altitudinal zonation of vegetation B) Heavier precipitation C) Lower atmospheric pressure D) Local wind systems more prevalent E) Higher temperatures