Answer: Ultrafine particles cause poor health. Ultrafine particles are absorbed by the lungs when people breathe
Explanation: Its A and C
<span>A sand bar that completely crosses a bay, sealing it off from the open ocean, is called a baymouth bar.
As a result of longshore drift (which creates beaches as well), this depositional feature that doesn't allow access to a bay is created. This refusal of access is complete, not partial as is the case with a barrier island separating a lagoon. A baymouth bar consists of a lot of sand and gravel that accumulated over time.
</span>
When nitrogen is absorbed by the soil, different bacteria help it to change states so it can be absorbed by plants. Animals then get their nitrogen from the plants. Fixation - Fixation is the first step in the process of making nitrogen usable by plants.
Hi!
Question - How do mutations lead to variation
Answer - B. By producing changes in the genetic code
Why - "In which can create entirely new alleles in a population"
All of this extra carbon needs to go somewhere. So far, land plants and the ocean have taken up about 55 percent of the extra carbon people have put into the atmosphere while about 45 percent has stayed in the atmosphere. Eventually, the land and oceans will take up most of the extra carbon dioxide, but as much as 20 percent may remain in the atmosphere for many thousands of years.
The changes in the carbon cycle impact each reservoir. Excess carbon in the atmosphere warms the planet and helps plants on land grow more. Excess carbon in the ocean makes the water more acidic, putting marine life in danger