Question

which increases the amount of thermal energy on earth according to scientists? (1 point)
an increase in greenhouse gases has trapped heat.
the sun has grown brighter.
more heat from earths core is being conducted to the surface.
there is more convection occurring on earth.

Explanation:

Scientists have established that an increase in greenhouse gases (like carbon dioxide, methane) in the atmosphere traps more infrared radiation (heat) emitted from Earth's surface, leading to a rise in thermal energy (global warming). The sun's brightness hasn't significantly increased recently to cause this, Earth's core heat conduction and surface convection aren't the primary drivers of increased global thermal energy on the scale observed.

Answer:

A. An increase in greenhouse gases has trapped heat.