Which of the following is not true about mass movement?
a. some mass movement is to slow to be seen
b. mass movement always leads to landslides
c. gravity is the driving force behind all mass movements
d. mass movement is always downslope

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.