Answer:
a steep temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temperatures.
Explanation:
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Answer:
It causes the object to slow down or stop.
Explanation:
Friction is a unknown force pressing against another force slightly, making the moving object slow down.
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Answer:
B
D
C
A
Explanation:
Digestion begins in the mouth with the process of chewing also known as mastication. Saliva in the mouth mixes with the food. saliva contains amylose. This breaks down sugar into smaller units of dextrins and maltose.
In the small intestine, the pancreas releases pancreatic juice which breaks down dextrins into smaller units.
the cells in the small intestine helps to transport the digested nutrients to the blood stream
Undigested food goes to the large intestine and eliminated in the stool
Water is photolysed to produce electrons, H+ ions and O2.
The equations is 2H2O ->4H+ + 4e- + O2
