The African countries include: Nigeria, Ghana, Gambia, Sierra Leone, Liberia, South Sudan, and Cameroon.
Include or not include trace gases?
Similarities:
- Marine and freshwater ecosystems are water, covering almost 75 percent of the earth's surface.
-The most pervasive problem affecting both freshwater and marine ecosystems is pollution.
-The process of regulating the osmotic pressure on fluids inside an organism is essential to all freshwater and marine species.
Differences:
- Marine ecosystems are more diverse than freshwater ones.
- In marine or seawater, the salinity level, or the concentration of salt is greater, but freshwater is not totally void of it.
- Only 1% of the whole water body on the earth is freshwater, the other 99% is marine water.
Note- I couldn't come up with ones for estuaries, sorry.
Answer:
Because Earth's gravitational pull is so strong, we do not notice the pull from other objects. Earth's gravity pulls everything to the center of Earth and prevents us from flying off into space
