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.
<u>Answer:</u>
<em>Use of renewable resources</em>
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<u>Explanation:</u>
Greenhouse gases from human exercises are the most critical driver of watched environmental change since 20th centuries. Atmosphere compelling alludes to an adjustment in the Earth's vitality balance, prompting either a warming or a cooling impact after some time. An expansion in the barometrical convergences of ozone-depleting substances creates a positive atmosphere driving or warming effect.
Centralizations of the gas and other ozone-depleting substances in the climate have expanded since the start of the modern period. Practically the majority of this expansion is owing to human exercises
It's known as a delta. please mark as brainliest