Convection currents occur in the MANTLE. The mantle is the second layer of the earth after the crust. The mantle is approximately 2900 km thick. Convection currents are triggered or fueled by the heat from the Earth's core.
The part of the mantle closest to the core gets heated. It then becomes less dense than the layers above so it rises. When this rising plume interacts with the crust it cools and becomes more dense than the layers below and so it sinks and this circular motion continues to form convection currents.
Answer:
Minnesota
Explanation:
geography. Mesabi Range is an iron deposit
The answer is D, noble gases are stable.
Answer:
The first one in column 1 goes to the 4th one in column 2
The second one in column 1 goes to the 1st one in column 2
The third one in column 1 goes to the 3rd one in column 2
The fourth one in column 1 goes to the 2nd one in column 2
Explanation:
They are called fringing reefs. They grow directly from shore and form borders along the shoreline.
When a fringing reef continues to grow upward from a volcanic island that has sunk entirely below the sea level, an atoll is formed. Atolls are usually circular or oval in shape, with an open lagoon in the center.
The fringing reef is the most common type of coral reef. They however tend to be very sensitive to human induced pollution in the water and are easily destroyed by such.
