Population Growth

What do you call a period of rapid growth?

• exponential growth
• logistic growth
• emigration
• predator-prey cycle

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease

If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

If the number of births is greater than the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

Which is NOT a reason for the decreasing death rate?

• Better health care
• Greater food supply
• Cleaner water
• More pollution

Before 1800, the infant mortality rate was much higher than it is now. What does that mean?

• People didn't have a lot of babies before 1800

• Children did not grow very tall before 1800

• Most women were unable to have babies before 1800

• A lot more babies died during childhood before 1800

What might happen if the earth exceeds its carrying capacity?

• There might not be room for people to move around.

• There might not be enough food and water for everyone.

• The continents might sink into the oceans.

• Most of the people on the planet would starve.

If the world population keeps growing at its current rate, how many people might be alive in 10 years?

• 14 million

• 22 billion

• Between 7 and 8 billion

• 1.5 trillion

Which of the following would be a good step to take to reduce the waste you produce?

• Ask your parents to buy you your own car

• Try to reduce your consumption of electricity and fuel

• Use only electric appliances in your home

• Only buy products with vacuum-sealed plastic packaging

Why are solar and wind power considered alternative energy sources?

• They are an alternative to non-renewable energy sources like fossil fuels

• They are used by people in alternative communities

• They use alternating current instead of direct current

• You can alternate between using solar power during the day and wind power at night