Answer:
1.rock gets destroyed
2.rock get stuck under sailers shoe
3.sailer walks on land
4. sees rock under shoe
5. he takes of rock from shoe and throws it away
6. millions of years later you step on that same grabit
Explanation:
Flooding can affect rivers because river flooding causes things to be picked up from the streets and pulled back into the water. So It affects the water quality and if anything dangerous to the fish and water life gets in the water it will mess up their life system. Hope this helped a little bit. :)
<em>Gravity has the same role as it does in any solar system it keeps the planets in order</em>
