The appearance of banded iron layers in the rock record between 1.08 and 3.8 billion years ago reflect the alteration of oxygen-rich and oxygen-poor conditions in the ocean at that time is True.
<u>Explanation:</u>
Banded rocks have layers of iron oxide and cherts that contain silica. The layer containing iron oxide has a dark color and the chert layer is red in color. Haematite and magnetite are usually the iron oxides that make up the banded rocks.
Banded rocks were formed by the reaction of iron in the oceans with the oxygen produces by photosynthetic bacteria in the ocean. The reaction caused the formation of iron oxides and their precipitation as Banded iron formations.
The presence of free oxygen is crucial for the formation of banded rocks and the formation reduced drastically after 1800 mya period when atmospheric oxygen availability was reduced. Banded rocks represent the oxygen rich and oxygen-poor condition of the ocean at that time.
Answer:
The correct answer is option C. "The protein would become denatured due to the acidic environment".
Explanation:
Under acidic conditions the ionizable groups of the amino acids of the proteins are ionized due to the high protons content. This condition cause that protein lost its native structure and become unfolded and denatured. The acidic environment of the stomach will have this effect on the gram of proteins that have the Yummie cake, becoming denatured once it passes through the stomach.
<span>The catalyses enzyme is one of the most efficient enzymes known, since each enzyme can perform nearly 800,000 catalytic events per second. Catalase protects cells from hydrogen peroxide (H2O2) molecules by converting them to oxygen (O2) and water (H2O).</span><span />
If it were a terroristic poisoning I’d say FEMA but if it were just pesticides then FDA
Hi there!
Here are some examples of Enviormental resources:
#1 Coal
#2 Gold
#3 Gas
#4 Iron
#5 Copper
#6 Petroleum
Hope this helps you!
~DL ☆☆☆
