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aalyn [17]
2 years ago
6

Which statements about fresh-water sources are true.? (Multiple Choice) (please help asap thanks!:)

Chemistry
1 answer:
Kay [80]2 years ago
3 0

Answer:

The correct answers are:
"Only about 3 percent of Earth's water is fresh water."

"About 75% percent of the fresh water on Earth is frozen in ice sheets."

"The largest source of usable fresh water is groundwater."

Explanation:

3 percent of Earth's water is most certainly fresh water. Confirmed with a few fact checks.

The largest source of usable fresh water on Earth is groundwater. It's more difficult to access but it's there and much more usable than water say frozen in ice on the sea.

The most correct option left would be 75% of Earth's freshwater being in ice sheets even though it's about 70%.

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SOMEONE, PLEASE HELP!!
scZoUnD [109]

Part 1:  

The process that arrow C signifies is the burning of fossil fuels in order to present carbon dioxide into the atmosphere. The mentioned procedure in the carbon cycle is comparatively new as humans were not able to generate huge concentrations of carbon dioxide by burning fossil fuels until the emergence of the Industrial revolution.  

Part 2:  

The phenomenon, which could discharge the compound into the air is the burning of fuels. It is an oxidation reaction in which the carbon present in the hydrocarbons in the fuel is oxidized to carbon dioxide by the presence of oxygen in the air. The carbon dioxide discharged into the atmosphere contributes to the greenhouse effect.  

Part 3:  

The elements, which produce it are conserved at the time of the carbon cycle by the Law of Conservation of Matter. According to this law, the matter is neither consumed nor produced, it only gets transformed. So, at the time of chemical procedures in the carbon cycle, the atoms of carbon are never destructed, however, they get rearrange and modify into distinct molecules. The mentioned cycle is essential for maintaining life on Earth.  

5 0
3 years ago
In the compound MgCl2MgCl2, the subscript 2 indicates that
MatroZZZ [7]

 The subscript 2  indicate that  there are two atoms of chlorine  in the compound.

<u><em> Explanation</em></u>

 Subscript in the chemical formula indicate  the number of atoms  of the element immediately  before the subscript.

In MgCl₂  there are two(2)  atoms of chlorine  since Subscript 2 is immediately  after chlorine.

3 0
2 years ago
High-pressure areas or belts are caused by air which is:
Finger [1]
Pressure systems are responsible for the movement of weather systems around the globe. High pressure areas or belts are caused by air which is sinking and cooled. This process generates wind currents which can move clouds around in the atmosphere. 
3 0
2 years ago
New Zealand is one of the most geologically active places on Earth. Earthquakes, volcanoes, and geysers commonly occur throughou
shepuryov [24]

Answer:

Tectonic plates

Explanation:

All the natural disasters like earthquakes, volcanoes and geysers appear throughout the region of New Zealand because of the movement of tectonic plates underneath the surface. New Zealand rests on the edges of two tectonic plates including the Pacific and the Australian plates.

8 0
2 years ago
What is a leading theory for the information of fossil fuels?
OverLord2011 [107]

i believe the answer is a, organic matter was compressed and heated

7 0
3 years ago
Read 2 more answers
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