Answer:
D. Ultraviolet rays from the sun are prevented from reaching Earth.
surface.
Explanation:
What little is known is that the Earth's magnetic field creates the so-called "magnetic shield" that provides protection against some other dangerous forms of radiation, namely cosmic rays and solar wind.
While there is no danger of losing the Earth's gravitational field, the Earth's magnetic field is declining faster than any other geophysical phenomenon. This continuous loss of the Earth's magnetic field, and the associated increase in harmful radiation, are beyond human control.
Shrubs and trees regrow quickly in an area that has been burned during a forest fire.
Algae,grasses, and other small plants grow on newly exposed rock over a long period of time.
Answer:
Trees remove carbon dioxide from the atmosphere. Carbon dioxide is a greenhouse gas that causes global warming.
Explanation:
Trees take in carbon dioxide and release oxygen. Deforestation gets rid of trees, so carbon dioxide is no longer being absorbed. Since carbon dioxide is a greenhouse gas, meaning that it traps heat in the Earth's atmosphere, too much of it causes global temperatures to rise.
Exons are the DNA fragments that get to be transcripted and translated into proteins. Option b)<u> </u><u>Exons</u> end up being expressed in the protein.
<h3>What are introns and exons?</h3>
Even though more than 70% of the DNA is related to genes, just a part of the genes is translated to proteins. Most genes have DNA segments that are not transcripted or translated intercalated with segments that are translated.
- Introns are non-encoding sequences that produce interruptions in a eukaryotic gene.
- Exons are the encoding sequences. Exons are the nucleotidic sequences that do codify proteins.
Most of the eukaryotic, multicellular genes contain introns in their sequences, intercalated with exons.
Introns are transcripted to mRNA molecules and get excised before translation by a specific mechanism. This occurs before the mRNA leaves the nucleus. The introns are excised and the exons must splice to form a unique molecule. This process is known as splicing.
Exonic sequences are the fragments that are transcripted and translated into proteins.
The correct option is b). Exons end up being expressed in the protein
You can learn ore about exons at
brainly.com/question/26464408
brainly.com/question/3544326
The scenario is sea levels rising, or more catastrophic wether because of fossil fuels
