<span>Depletion of the ozone layer. Choloroflourocarbon (CFCS) are dangerous because of their destructive reaction with Ozone particles, which provide the Earth with a protective layer or shield against UV radiation. Depletion of the ozone layer begins when when CFC gets into the stratosphere. Sunlight breaks up cfcs releasing Chlorine Atom. Chlorine atoms in turn react with Ozone, starting a chemical cycle that destroys the ozone layer in that area. Once the ozone layer is depleted, there's nothing holding back the harmful UVB wavelengths of ultraviolet light (UV light) from passing through the Earth's atmosphere causing havoc on plants and animals.</span>
More abilities and can adapt to it's area.
You can tell if asthma is related to exercise
(i) If a person has a coughing and shortness of breath. This feels a few minutes after an activity
(ii) You feel constricted. When on the exercise you feel like you can’t get enough air in your lungs.
(iii) A person feels fatigue after training instead of being energized.
(iv) If a person lives in a dry environment the breath in air that is divided and colder than the other parts of your body.
Answer:
15%
Together, adenine and thymine compose 70% of the segment. This means that 30% of the section is composed of guanine-cytosine pairs. Since these two bases will be equal in quantity, 15% of the DNA section will be cytosine bases.
<span>Asexual
reproduction produces offspring that are genetically identical to a single
parent. The offspring may either bud from the parent or by fission. An example
of this is Baker’s yeast. They are produced by budding. So as the small bud
grows from the parent, it receives the same nucleus of the parent. When it
pinches off from the parent, it is smaller but is genetically similar to the
parent. On the other hand sexual reproduction involves two parents that contribute
to the genetic material in order to produce a unique offspring. Your answer is
incorrect. The correct answer is letter B.</span>
