The world's total polar bear population is likely to decline by 30-35% by 2050 due to ____.
A. reproductive problems
B. over hunting
C. loss of habitat and prey
D. temperatures too warm for their fur
E. DDT in the food chain
Answer: C
You might also like to view...
Which of the following would be the initial ecological consequence of falling water tables?
A) loss of agricultural irrigation water B) lack of drinking water C) loss of mammals D) loss of permanent wetlands E) loss of bird species
Guns, knives, metal tools, and other Western technologies and commercial products, were introduced to the Far North for the first time by
A) Miners and mercantilers. B) Lumberjacks and fishermen. C) Farmers and miners. D) Fur traders and whalers.
The subducting Juan de Fuca Plate is only 10- to 15-million-years old and is warm and buoyant. However, as it is subducted, its density increases, causing a buildup of stress.
Answer the following statement true (T) or false (F)
Aphelion
What will be an ideal response?