That element is iron.
Given that olivine, pyroxene, amphibole, and biotite are all minerals found in mafic igneous rocks, the answer is quite simple if you know something about such rocks. Mafic rocks contain elevated amounts of iron, which makes them dark in color.
Answer:
terminal hairs
Explanation: ps dont trust that guy below me // those links are unsafe
Potassium is most likely to be found with 6.25% of its original amount in 6 billion years because the half life of Potassium-40 is 1-1.5 billion years in graph. Thus the correct option is C.
If it half in 1 to1.5 billion years = 50% gain
1-1.5 billion years = 25%. gain
If we do that 2 more times we will get 12.5% and then 6.25% gain.
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What is half life?</h3>
Half life is defined as the time required for half of the atoms of a radioactive substance to become disintegrated.
Our estimate is about 1-1.5 billion years so repeating that about 4 times we get around 4-6 billion years for it to gain 6.25%. From this it can be concluded that Potassium-40 as since it comes the closest to remaining at 6.25% its original amount after approximately 6 billion years.
For more information regarding, half life radioactivity, visit:
brainly.com/question/2320811
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Every time I would say, but often is the answer as theory should be revised, and also done practically so that you don’t forget the concepts
Answer:Photosynthesis is the process by which plants use the energy of sunlight to make sugar (glucose) from carbon dioxide and water. Respiration is the process by which animals use O2 to get energy from food. So plants take in CO2 from the air and produce O2, and animals take in O2 from the air and produce CO2.
Explanation:
