Question Number 6 of 10 - 8th Grade Science A group of people were concerned about a new coal-burning power plant that might be built in their
neighborhood. What is probably their main concern?
The heat from burning coal can drive
generators that produce electricity
There is more coal in the earth than
there is oil and gas,
Burning coal produces sulfur dioxide
which contributes to acid rain.
Burning coal produces more heat
than burning wood

Which of the following characteristics are true of enzymes? check all that apply. a.)the structure of an enzyme can change if conditions change. b.)a single enzyme can normally catalyze a wide variety of reactions under many conditions. c.)enzymes are found only in nonliving systems. d.)enzymes allow living things to regulate body conditions through feedback mechanisms. e.)enzymes bind to specific substrates in specific ways. f.)enzymes increase the rate of reaction. g.)when shown in energy-reaction diagrams, enzymes represent the higher activation energy.