Plant trees because they absorbe co2
Pollution can come from both natural sources and human activities depending on the type of pollutant.
<h3>What is pollution?</h3>
It is the release of substances into the environment to the extent that the well-being of plants, animals, and humans starts getting affected.
Substances that are released into the environment to the extent that they start affecting the organisms in the environment negatively are known as pollutants.
Pollutants can come from natural sources or as a result of human activities.
For example pollutants such as oxides of sulfur, methane, carbon dioxide, etc. can come from natural processes such as volcanic eruptions, activities of microbes, etc.
Pollutants such as oxides of carbon and sulfur can also be generated as a result of human activities such as the burning of coal, technological inventions, etc.
More on pollution can be found here: brainly.com/question/23857736
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Answer:
The correct answer will be option A.
Explanation:
The electrical impulses are generated in the sino-atrial node or SA node, a mass of cells which generates impulse in the upper atrium.
This electrical impulse transmits from the sino-atrial node to the atrio-ventricular node in the lower portion of the upper atrium through the internodal pathway- the pathway composed of atrial cells.
Once the impulse reaches the AV node, it is transferred to the ventricular portion of the heart through Bundle of His presence in the ventricular septum. This bundle of his divides into left and right ventricles through bundle branches and stimulates both the ventricles.
Thus, option-A is the correct answer.
Explanation:
<em>In </em><em>the </em><em>2</em><em>0</em><em>0</em><em>-</em><em>p</em><em>l</em><em>u</em><em>s</em><em> </em><em>years </em><em>since </em><em>the </em><em>industrial </em><em>revolution </em><em>began,</em><em>concentration </em><em>of </em><em>carbon </em><em>dioxide </em><em>in </em><em>the </em><em>atmosphere </em><em>has </em><em>increased </em><em>due </em><em>to </em><em>human </em><em>actions.During </em><em>this </em><em>time,</em><em>the </em><em>pH </em><em>of </em><em>surface </em><em>ocean </em><em>waters </em><em>has </em><em>fallen </em><em>by </em><em>0</em><em>.</em><em>1</em><em> </em><em>pH </em><em>units.This</em><em> </em><em>might </em><em>not </em><em>sound </em><em>like </em><em>much,</em><em>but </em><em>the </em><em>pH </em><em>scale </em><em>is </em><em>logarithmic,</em><em>so </em><em>this </em><em>change </em><em>represents </em><em>approximately </em><em>a </em><em>3</em><em>0</em><em> </em><em>percent </em><em>increase </em><em>in </em><em>acidility.</em>
<em>Pick </em><em>as </em><em>brainliest </em><em>like </em><em>my </em><em>answer</em>
<em>that's </em><em>the </em><em>answer </em><em>of </em><em>my </em><em>book </em>
<em>hope </em><em>it </em><em>helps</em>
<em>#</em><em>b</em><em>r</em><em>a</em><em>i</em><em>n</em><em>l</em><em>y</em><em>e</em><em>v</em><em>e</em><em>r</em><em>y</em><em>d</em><em>a</em><em>y</em>
<em>#</em><em>c</em><em>t</em><em>t</em><em>o</em>
