He was involved in the mapping of venus and mars
Answer:
Convergent plates move towards each other.
Explanation:
Answer:

This is a double displacement reaction, C goes with Cl in the products side and O2 goes with H. All that is left is to balance the equation, making sure each side has equal amounts of atoms.
1. they work ways faster
2. you don't need 100 people making the same thing at once
3. its a better chance of not getting an injury
SI Unit
I'm not 100% sure but I think that's right. Hope I helped you in any way.