Question

the part of the earth where life exists *
gyrosphere
atmosphere
biosphere
atherosphere
how salty seawater is *
oceanography
geology
meteorology
astronomy
lines of longitude determine locations north and south of the prime meridian.

• 1 point

true
false

Explanation:

1. The biosphere is the global sum of all ecosystems where life exists.
2. Oceanography studies the ocean including its salinity.
3. Lines of longitude determine locations east and west of the prime - meridian, not north and south.

Answer:

1. C. biosphere
2. A. oceanography
3. B. False