The railroad tracks are parallel, because they go the same direction and don't intersect
Answer:
1. The declaration of independence
2. The Constitutional Convention
3. World War 1
4. World war 2
5. 9/11
Explanation:
Trees take in carbon dioxide and other gases that we cannot breathe in and gives us oxygen. It also helps other plants and animals nourish themselves. To some animals, trees are their habitat so by planting more trees, we are technically building a habitat for plants and animals to live in. It's also good shade on a sunny day.
Sedimentary rocks are younger than their composite minerals