Answer:
15 atoms
Explanation:
About 15 atoms out of the 120 Adams would remain.
<em>Generally, the half-life of a substance is the time it takes for one-half of that substance to disintegrate.</em>
Carbon 14 has a half-life of approximately 5,730 years. 17,190 years means that the sample had stayed for 17,190/5,730 which is equal to 3 carbon-14 half-lives.
Out of 120 Adams,
- <em>the first half-life will reduce 120 to 60 Adams</em>
- <em>the second half-life will reduce 60 Adams to 30 Adams</em>
- <em>the third half-life will reduce 30 Adams to 15 Adams.</em>
<em>Hence, at the end of the 17,190 years, approximately </em><em>15 Adams</em><em> would remain.</em>
Answer:
Upwelling improves the nutrient supply at coastal fisheries as the cold, nutrient-rich water replaces the warm, nutrient-poor surface water
Explanation:
The upwelling is simply the process through which the cold water rises up toward the surface, pushes and moves away the warmer water, until it gets warmer and is pushed by the colder water blow it. The cold water that rises toward the surface is nutrient-rich, while the warm surface water is nutrient-poor. By having the nutrient-rich cold water come toward the surface, the coastal fisheries have great benefit, as the more nutrients there are, the more fish there will be for them to catch.
In these species, the populations fluctuate by having spikes due to the surface temperatures that increase as a consequence of global warming. It is a consequence of global warming in natural populations.
<h3>Global warming</h3>
Global warming refers to the constant increase in temperatures on Earth's surface due to human activities.
The human activities that lead to global warming include deforestation, burning fossil fuels, and farming livestock.
Global warming affects warm water species by the increase in water temperatures, thereby affecting also water quantity and water quality.
Learn more about global warming here:
brainly.com/question/3553382
The base level of a tributary would become HIGHER if a dam and a reservoir were constructed where it flowed into a trunk stream.
2. In series, we add the resistance up
Use the formula V = IR to find the current.
R = 10+4 = 14, V=42
42=I (14)
I = 42/14 = 3 A
3. Closed
4. Answer B
This is because unlike poles attract and like poles repel.
Hope it helped!
