Answer:
The hardness rating is 4.
Explanation:
Calcite sits at a hardness rating of 3 and is very easily scratched with a knife and/copper coin. This is where most Marbles, limestones, travertines, rate.
Meanwhile, Fluorite sits at hardness 4 and can be scratched by a knife.
Answer:
if plants had less chloroplasts then they wouldn't be able to get energy from the sun and end up dying
The answer is C, Chlorophyll
