Earth constantly takes in more heat from the Sun. Earth has forests that provide heat through photosynthesis. Earth has oceans that store heat. Earth absorbs extra heat from molten lava.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Since Earth radiates heat into outer space, why is Earth's surface not becoming colder?
Possibilities:
- Earth constantly takes in more heat from the Sun.
- Earth has forests that provide heat through photosynthesis.
- Earth has oceans that store heat.
- Earth absorbs extra heat from molten lava.

Earth constantly takes in more heat from the Sun.