Answer:
Characteristics are listed below
Explanation:
An estuary is defined as a coastal water body that is partially enclosed and where freshwater from other natural water sources like river will mix with the salt water coming from the ocean.
It's characteristics are;
- It has a concentration of dissolved oxygen gas
- It has varying degree of salinity which varies depending on the area where the fresh water mixes with the salt water.
- It has sediment load.
-The salinity could also depend on the tidal and wind influences.
The answer is Option D., International Space Station. Gemini and Mercury were for only orbiting around the earth, and apollo was for orbiting around the moon.
Answer: Volcanoes drives geological change.