What would happen on earth if the sun were 'turned off' and ceased to provide heat for the earth?

Exactly what kind of weather conditions would a cold front produce?

Ineed , i need to create a power point in life science here is a picture explaining a little what the topic is about, me with some information for my slides : (

Explain the reason for having an equator and a prime meridian. how do these two lines us to navigate our world? describe your opinion in at least two to three sentences.