Question 1
The temperature of the lower atmosphere has risen the most
◦ in the last 150 years.
◦ in the last 60 years.
◦ in the last 250 years.
◦ in the last 100 years.
◦ in the last 1000 years.
Question 2
The total number of individuals in a given area of habitat is the
◦ population density.
◦ population growth.
◦ population birth rate.
◦ population size.
◦ carrying capacity.