•how does convection drive plate movement?

Convection drives plate movement because of high convection current on the Earth’s core.  It makes molten rocks to move in molten layer.

Explanation:

In the aesthenosphere, high convection currents pass heat on the surface, where less dense magma leaves break down plates in distribution centres and create different plate boundaries.

When the plate moves away from the propagation centres, they also cool down to higher-density rocks, which are part of the oceanic crust consumed in ocean subduction areas. Then, the crust returns to aesthenosphere.

Generally, the heat generated by the radioactive decomposition of elements deeper in the Earth produces magma (molten rock) in aesthenosphere. It (70 to 250 km) is a part of mantle, the central globe, extending over 2,900 km.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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