Tell whether the statement is true or false: convection currents produce the heat in the earth’s interior.

The answer is FALSE. Convection currents do not produce the heat in the earth’s interior. They are rather responsible for distribution of this heat in the mantle. The radioactivity of the earth's core is the main source of heat. As the materials such as uranium decay, they release heat that keeps the interior hot.

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

the real answer is b. scintillation counter