Biology

The correct answer is: A.Generations

"If we care for the earth now, it will ensure it is still around for future generations."

This is the most fitting word because the concept of caring for the Earth is often framed in terms of ensuring that the planet remains habitable for future generations of people. It emphasizes the responsibility we have to protect the environment for those who will come after us.

Here's why the other options are less suitable:

B.World: While "world" is often used to refer to Earth, it doesn’t capture the long-term, human-focused aspect...