The ________ in the 60s and 70s Came About Because

question 53

Multiple Choice

The ________ in the 60s and 70s came about because of concern for acid rain,toxic wastes,litter and the damage caused by strip mining and forest depletion.

• A)first wave of modern environmentalism
• B)second wave of modern environmentalism
• C)current wave of environmentalism
• D)second wave of consumerism
• E)first wave of enlightened marketing

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Definitions:

First Heart Sound

The sound produced by the closure of the AV (mitral and tricuspid) valves at the beginning of ventricular contraction or systole.

Second Heart Sound

The second heart sound is produced by the closing of the aortic and pulmonary valves at the beginning of ventricular diastole.

Ventricular Systole

The phase of the cardiac cycle in which the ventricles contract, pumping blood out of the heart into the arterial system.

Ventricular Diastole

Dilation of the heart ventricles.