It is 200 million years because it has been around for a long time.
The classic case of ionic bonding, the sodium chloride molecule forms by the ionization of sodium and chlorine atoms and the attraction of the resulting ions. An atom of sodium has one 3s electron outside a closed shell, and it takes only 5.14 electron volts of energy to remove that electron.
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Answer:
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Explanation:
Climate change includes all the differences in the climate that last longer than individual weather events, such as the term climate change only refers to those variations that last for a longer period of time, typically decades or more. In addition to the general meaning in which "climate change" may refer to any time in Earth's history, the term is commonly used to describe the current climate change now underway. In the time since the Industrial Revolution, the climate has increasingly been affected by human activities that are causing global warming and climate change. It is also effected by human disturbance to the earth.
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The answer is B.
If you put one plant in wet soil, and one plant in dry soil, you can prove or disprove your hypothesis as the plants grow.
Sorry I have no idea but if you read the summer of the swans please let me know because I got a lot of questions to ask
