Explain why water used by plants and animals today has been around for millions of years.

Answer:

Plants and animals use water that has been around for millions of years. Water that is part of plants and animals eventually returns to the water cycle. Plants and animals store water during the water cycle, but the water that they store is not lost to the water cycle. The water cycle continuously transfers water from one source to another. Water is not lost during this cycle, it is only stored in different forms.