what effect would thick cloud cover have on the temperature of earth's surface?

Clouds will form as a cover in the upper atmosphere. Hence, it can trap the heat and some radiations released by the surface of earth. and they radiates the heat back to the surface.What are clouds?Clouds are formed by the combination of condensing gases and dust particles in the atmosphere. There are various kinds of clouds based on the regions they appear and the effect they have on earth.In the day time the sky radiated heat and light energy into the surface of earth. Thus the earth's atmosphere warms up and make the day time more more hot. However, clouds will over the upper atmosphere and make less heat radiates to the ground.But in the day time, clouds emit the heat energy they trapped at the day time and they becomes cooler while the earth surface more hot. Therefore, thick cloud can trap the radiant energy from sun and emit it back to the earth.To find more on clouds, refer here:https://brainly.com/question/1558130#SPJ2

Thick cloud cover over the whole of planet Earth would block out sunlight from reaching the surface.  This means that it would lower the temperature on the Earth's surface.