Which of the following statements about weathering is true? Physical and chemical are the two types of weathering.
b. Weathering occurs when rocks are subjected to the movement of wind or water.
Humans are the only cause of weathering.
d. Movement is required for weathering to take place.
C.
Please select the best answer from the choices provided
O A
OB
OD
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1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme