The main reason why the tectonic plates move is the conversational currents. There is magma between the upper mantle and the asthenosphere that heats up at the upper mantle. The weight is so small that the magma rises with the help of these conversational currents. When the magma has ascended towards the asthenosphere, it has nowhere to go so the magma lies along the asthenosphere. There the magma cools down again because the asthenosphere is colder than the upper mantle, which makes the magma heavier and goes back down to the upper mantle, where the magma heats up again and everything starts all over again and so it goes on over and over again. Scientists have concluded that the earth's gravity causes two other processes that also cause the tectonic plates to move.
Ridge push - in the spreading zones, the sides of the tiles are raised and slide to the side as in a slide.
Slab pull - when a plate is pulled down by gravity in a subduction zone like an anchor.
The Rocky Mountains is the largest mountain system in N.A
Surprisingly, there are 196 countries today! hope this helped
The correct option is renewable resources make cleaner energy.
Renewable energy, often known as clean energy, comes from naturally regenerated sources or processes. Sunlight and wind, for example, continue to shine and blow, even if their availability is dependent on time and weather.
Renewable energy is energy generated from naturally replenished sources such as the sun and wind. Renewable energy may be used to generate electricity, heat and cool buildings, and power vehicles.
A renewable resource is one that can regenerate fast and is replaceable, whereas a nonrenewable resource is one that cannot be renewed by natural resources.
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A stack or sea stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast, formed by wave erosion.<span>[</span>
