Wolves were reintroduced into Yellowstone National Park in 1995. The graph below shows the population size of the wolf and elk populations over time. Based upon the data presented in the
graph, which of the following best identifies the HIGHEST wolf population size?
ELK AND WOLVES IN YELLOWSTONE
20.000
200
18.000
180
Wolves
16.000
160
14,000
140
12.000
120
Northern Range Elk Population
10.000
100
Yellowstone Wolf Population
8.000
80
6.000
60
4.000
2000
20
1960 1969 1968 1969 1972 1975 1978 1987 1988 1987 1990 1999 1998 1999 2002 2005 2008 2011
20
O 120
170
190

Warm air above the ocean rises, making room for cooler air from the land.

Explanation:

The nightly breeze that blows toward the ocean in coastal location is caused by the movement of cool air from the land to displace ward air above the ocean.

The phenomenon is referred to as land breeze, a opposite of sea breeze.

Due to the difference in heating ability of land and water (water heats up more slowly but retains heat longer), the land heats up quicker than water during the day and this create a blanket of low pressure, warm and less dense air above it. The higher pressure, cold and denser air from the ocean then moves to replace the space created over the land. This phenomenon is known as sea breeze.

The reverse occur during the night. Low pressure, warm, less dense air above the ocean gets replaced by high pressure, cold, denser air from land in what is known as land breeze.