Which of these best describe a steppe?

a.
a wide expanse of desert

b.
a grassland with few trees

c.
a cold region with tundra

d.
a large evergreen forest

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

In the diagram, δgef and δhef are congruent. what is the value of x?

Write a 150word essay describing the effect of people's activities on the environment in the region.