Answer:
Holmium can absorb neutrons, so it is used in nuclear reactors to keep a chain reaction under control. Its alloys are used in some magnets. Holmium has no known biological role, and is non-toxic. Holmium is found as a minor component of the minerals monazite and bastnaesite.
Explanation:
this is basically used in industries
The greenhouse effect captures the sun's energy and keeps the earth warm.
Definite volume and indefinite shape
Physical
When something is cooling it isn’t changing it’s chemical composition so it’s physical
