How do hot fluids act in metamorphism? .

Hot fluids interact with the preexisting rocks or crystallize and precipitate the minerals.

Explanation:

Metamorphism is the change of the structure or composition of a rock by pressure, heat, or other natural agency. Hydrothermal metamorphism occurs chemically active when hot, hydrothermal fluid or solution interact with surrounding preexisting rock.

The magma or hot fluids crystallizes the hydrothermal solution is driven off into the surrounding rock where it exudes into pores and cracks precipitating the minerals.

In oceanic hydrothermal metamorphism magma drip out onto the ocean floor to form pillow Basalts.

i'm pretty sure it's spores

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.