What was the problem with re-using contaminated water from other parts of the mill to
extinguish the coke fires?

the answer is c.) there is a warm front in region a and a stationary front in region b.

this is a good question! i'll do some research and come back when i have the answer!

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.