Natural air pollution comes from those known as wild fires, and volcanic smoke. If you wonder why well it's because of the smoke it contains and produces. Smoke is one of our biggest air pollution and it contaminates our atmosphere.
I'll provide pictures of natural air pollution..
Note:
These pictures don't belong to me.
I hope this helps.
Answer:
Plants are a source of food, fuel and medicine.
Explanation:
In biology, plants are photosynthetic living beings without locomotive capacity whose cell walls are mainly composed of cellulose.
The importance of plants for humans is indisputable. Without them we could not live, since the plants participated in the composition of the gases present in the Earth's atmosphere and in the ecosystems, and are the primary source of food for heterotrophic organisms. In addition, plants have direct importance to man: as a source of food; as building materials, firewood, fuel and paper; as ornamental; as substances that worsen or improve health and therefore have medical importance; and as a consequence of the latter, as the raw material of the pharmaceutical industry.
The structural level in which the muscle produces the contraction is known as the muscle fiber.
<h3>What is a muscle fiber?</h3>
A muscle fiber is a single muscular cell that is able to contract by using specialized proteins such as filaments of myosin and actin.
This unit (muscle fiber) is able to contract both in vivo and in vitro by establishing suitable environmental conditions (e.g., proper calcium levels).
In conclusion, the structural level in which the muscle contracts is the muscle fiber.
Learn more about muscle fibers here:
brainly.com/question/27960158
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Answer:
Plant cells need to store water for future use, such as for photosynthesis, so they need a larger vacuole than animal cells.
Explanation:
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Latex balloons is the answer.
