If an individual was exercising at an exercise intensity of 1.5 liters of oxygen per minute, and had a mechanical efficiency of 20 percent, how many heat calories would this person generate in 30 minutes?

Total calories = 45 calories

Explanation:

Given data:

intensity of oxygen per minute = 1.5 lt

mechanical efficiency = 20%

time =  30 minutes

1 litre of oxygen = 5 calories per minutes

Total calories = oxygen quantity/min * time* efficiency* cal/min

Total calories = 1.5*30*0.20*5

Total calories = 45 calories

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

it would lead to upper respiratory infections and pneumonia.