Quizizz 2.8.3 and 2.8.4

What is the carrying capacity of an ecosystem?

• the total number of individuals, living and dead, that have been supported by an ecosystem

• the minimum number of individuals needed to have balance in an ecosystem

• the maximum number of individuals that an ecosystem can support without harming the ecosystem

• the total number of organisms alive at the same time in an ecosystem

Which would most likely cause a reduction in the amount of coal and natural gas on Earth?

• a continual increase in the amount of pollution in Earth’s atmosphere

• a continual decrease in the amount of water in Earth’s aquifers

• a continual increase in the number of people on Earth

• a continual decrease in the amount of rain forests on Earth

As human populations increase, more shelter is needed. Increasing shelter often requires making a trade-off with another resource. In which case is a food resource decreased to increase a shelter resource?

• Wind power generated on farmland provides electricity for a factory.

• Old-growth timber is cut to build houses.

• Corn is made into ethanol for cars instead of food.

• Farmland is converted into house lots.

The graph below shows the population growth in an area.

Which of these could cause this population to stop increasing and stabilize?

• increasing ratio of offspring to parents in the population

• decreasing ratio of predators to prey in the population

• decreasing ratio of food to individuals in the population

• increasing ratio of space to individuals in the population

Which human activity MOST likely contributes to the solid waste pollution in streams and landfills?

• buying products packaged in disposable containers

• recycling glass, paper, and aluminum products

• combining leaves and grass clippings with paper products to use in composting

• using natural fertilizers on lawns

As human population nears its carrying capacity, what is likely to happen?

• There will be a decrease in air pollution

• There will be more clean water available for populations.

• There will be an abundance of food and energy resources.

• There will be an increase in competition for dwindling resources.

What effect would uncontrolled population growth have on land?

• increased soil fertility and increased erosion

• decreased soil fertility and increased erosion

• increased soil fertility and decreased erosion

• decreased soil fertility and decreased erosion

Which best describes the relationship between carrying capacity and Earth's resources?

• A population that is above carrying capacity will have a decrease in natural resources.

• A population that is above carrying capacity will experience an increase in plant production.

• A population that is below the carrying capacity will have an increase in contagious diseases.

• A population that is below carrying capacity will experience a decrease in freshwater resources.

How could the exponential growth of human population impact regions throughout the world?

• It could lead to a decrease in the demand for land within the regions.

• It could lead to a decrease in the amount of pollution in the regions.

• It could lead to an increase in the demand for food in the regions.

• It could lead to an increase in biodiversity of the regions.

Which of the following best conserves natural resources that are used to make a television?

• repair your broken television

• throw old televisions in the trash

• donate a new television to your school

• buy a television that is on sale