Answer:
11,460 years
Explanation:
The age of the bone would be approximately <u>11,460 years</u>.
The half-life of a substance represents the time required for one-half of an amount of that substance to decay or disintegrate.
<em>The half-life of C-14 is approximately 5,730 years. If the ancient bone had decayed for 2 half-lives it means that the bone had decayed for 5,730 x 2 = 11,460 years.</em>
Answer:
<em>The correct option is A) an increase in oxygen levels, which led to the extinction of many anaerobic organisms.</em>
Explanation:
Photosynthesis can be described as a process in which food (glucose) is produced by photosynthetic organisms by using carbon dioxide, water along with light energy from the sun. Oxygen is released as a by-product of this reaction. The process of photosynthesis initially allowed for oxygen gas to get accumulated in the air. This caused the rise of aerobic organisms who required oxygen for respiration. Before the photosynthesis organisms evolved, there was not enough oxygen gas on earth to support the life of aerobic organisms.
Answer:
the renal arteries: renal arteries are the route of blood
Explanation:
renal arteries are the route by which blood enters the kidney
Answer:
Due to the amount of money people make in Burundi they have a much smaller impact due to the fact they cant consume as much. With meat being
rare due to how expensive it have become. The average person in U.A.E make around 50x the average person in Burundi so they do consume more. So in the end the ecological footprint is much smaller in Burundi than in U.A.E.
Explanation: