Catalyst is a substance that speeds up a chemical reaction, but is not consumed by the reaction; hence a catalyst can be recovered chemically unchanged at the end of the reaction it has been used to speed up, or catalyze.
Answer:
The calcium carbonate is negatively impacted by increasing CO2 levels and decreasing pH in seawater
1 goes with d
2 goes with c
3 goes with b
4 goes with a
5 goes with e
Answer: b
Explanation:
All the smaller molecules are made up of the organic elements
Answer:
they might be spliting(reproduction) to make offspring
Explanation:
