The correct answer is a) 2%.
While it might be surprising, only about 2% of the Earth’s water is classified as fresh water. The majority, approximately 98%, is salt water found in the oceans. Fresh water is essential for human survival, agriculture, and industry, but it’s a limited resource. If you delve deeper into fresh water sources, you’ll find that much of it is locked away in glaciers and ice caps, which makes it even more scarce for everyday use.