The controlis the plant with just water. The independent variable is the plants. The dependaent is the amout of salt in the water.
The indepedent is the trees. The dependent is the greenhouse or no greenhouse.
I know that I'm late but, the correct answer is:
The Earth's outer crust (the lithosphere) is composed of a series of tectonic plates that move on a hot flowing mantle layer called the asthenosphere. Heat within the asthenosphere creates convection currents that cause tectonic plates to move several centimeters per year relative to each other.
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<em>Hey Mate </em>
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<em>This is the correct answer A</em>
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<em>Explanation: All of the genes found within the ecosystem</em>
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The main answer is Climate. Here's why:
The climate of different places can be hot, cold, or just right. Because New York is on the eastern side of the United States (which is a very rainy place), there is enough water for forests, marshes, and rivers. There are mountians because of the land being above sea level, likely caused by erosion or earthquakes.
