Science

The consequences of which of the following human activities would be the most reasonable basis for a classroom discussion on the eutrophication of a body of water?

• Use of fertilizers in agriculture

• Burning of coal for electricity generation

• Building of levees for flood control

• Extraction of oil from shale

a

• a

• b

• c

• d

Which of the following is a function of mitosis in humans?

• Synthesis of hormones

• Production of gametes

• Repair of damaged tissue

• Transmission of electrical signals

which of the following best explains how igneous rocks are formed?

• a

• b

• c

• d

a

• a

• b

• c

• d

q

• a

• b

• c

• d

answer

• a

• b

• c

• d

answer

• a

• b

• c

• d

answer

• a

• b

• c

• d

a

• a

• b

• c

• d