Which "sphere" is not directly studied in one of the main branches of earth/space science (geology, astronomy, meteorology, or oceanography)?
a. biosphere
b. exosphere
c. atmosphere
d. hydrosphere

If we review the changes in the landscape surrounding the great salt lake in utah we can see a change in topography. look at the area to the south of the lake. what change has occurred during the last twenty-nine years? a) erosion of the hills b) an increase in marshland c) flooding of the area and the development of wetlands d) deposition of sediments and an increase in elevation

The oldest seafloor in the atlantic ocean is located closest to the edge of the continents. explain how this age can be used to figure out when north america first began to separate from europe

Abird flies at a speed of 75 metres per second for 15 seconds, how far does the bird fly