A caldera viscous or acidic lava plugs the vent of a volcano this leads to violent eruptions this causes the crater to be blown off the top of the volcano subsides or collapes forming a basin shaped depression.called a caldera .hope this helps
Answer:
Radioactive dating, depending on the certain amount of radioactive decay it leaves through the years you can predict the oldest one!
Answer
16
or 50.24 units
Explanation:

and r is the radius, since we know what the radius is (<em>r </em>) we can put this in to an expression
· 4² = 16 units
If the answer is not 16 then its 50.24 units
Explanation:
Now 16 is the correct answer but just in case I took this a step further.
If we estimate the area by using 3.14 which is (
) because sometimes that isn't natural to express the area using
I hope I helped you : )
<em>Borneo</em><em> is the island divided among Malaysia, Indonesia, and Brunei.
</em>
<span>The island is politically divided among three countries: Malaysia and Brunei in the north, and Indonesia to the south.
<u>
Below is
Borneo island on the map</u>.
</span>
<em><u>Answer</u></em><em><u> </u></em><em><u>:</u></em><em><u> </u></em>
<u><em>There</em><em> are three ways in which humans and environment interact with each other</em><em> </em><em> </em><em>:</em></u><em> </em>
- <em>Humans</em><em> Depend on the Environment:</em><em> </em><em>The natural environment is made up of living things and non living things. Humans depend on the natural environment for their basic needs; food, shelter, and clothing.</em>
- <em>Humans Modify the Environment: </em><em>People modify (change) the natural environment to meet their needs. For example, they build dams, plow and irrigate fields, and dig mines. They build houses, schools, and shopping centers on land. This also includes human's impact on the earth's health. Creating pollution, litter and carbon dioxide all affect the earth's condition. </em>
- <em>Humans Adapt to the Environment:</em><em> </em><em> </em><em>Humans</em><em> have settled in virtually every corner of the world by successfully adapting to various natural settings. </em>
- <em> have settled in virtually every corner of the world by successfully adapting to various natural settings. For example, people who live in the northern United States use heating units to keep their homes warm in winter. People in the southern part of the United States use air conditioning most of the year to stay cool in the heat. In addition, in countries where earthquakes are common homes and buildings are built to survive an earthquake. </em>
<em><u>Hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u>u</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
<em><u>If</u></em><em><u> </u></em><em><u>i</u></em><em><u> </u></em><em><u>helped</u></em><em><u> </u></em><em><u>u</u></em><em><u> </u></em>
<em><u>Mark</u></em><em><u> </u></em><em><u>me</u></em><em><u> </u></em><em><u>as</u></em><em><u> </u></em><em><u>brai</u></em><em><u>nlist</u></em><em><u>.</u></em><em><u>.</u></em>