Answer:
Because the water puts out fires, and they go to fires
Explanation:
Answer:
Using a control group means that any change in the dependent variable can be attributed to the independent variable.
Explanation:
Answer:
4 billion years
Explanation:
Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.
