Human Impacts on Earth

Multiple Choice

A mass extinction is ___

• a rapid increase in biodiversity.

• the introduction of exotic species.

• the extinction of many species in a short period of time.

• a benefit to the environment.

Multiple Choice

An endangered species is

• a species in danger of extinction.

• a species growing on public land.

• an organism brought to a place where it has not lived before.

• a species that has disappeared entirely.

Multiple Choice

. The current rate of species extinction is

• slower than at any other time in this century.

• due primarily to the actions of humans.

• the result of natural environmental processes.

• of little consequence to Earth’s long-term survival.

Multiple Choice

A(n)____ is a species that is native to a particular place and is found only there

• endangered species

• endemic species

• exotic species

• invasive species

Multiple Choice

What groups of organisms are most in danger of extinction?

• those with small populations

• those that migrate or need special habitats

• those with large populations that breed quickly

• Both (a) and (b)

Multiple Choice

The Florida panther is a(n) ___ as a result of fragmentation and habitat destruction.

• invasive species

• exotic species

• extinct species

• endangered species

Multiple Choice

The Amazon Rain Forest is an example of a(n) ___

• endemic species

• mass extinction

• exotic species

• biodiversity hotspot

Multiple Choice

What is shown by the image?

• Habitat Fragmentation

• Primary Succession

• Biomagnification

• Conservation

Multiple Choice

Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

Multiple Choice

When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?

• Non-native plants are able to mutate rapidly
• Non-native  plants cause native animals to relocate
• Non-native plants are able to be used for medicine
• Non-native plants compete with native plants for resources

Multiple Choice

What effect will an invasive species have on the carrying capacity of an ecosystem?

• The carrying capacity will increase
• The carrying capacity for everyone will decrease
• The carrying capacity will only decrease for those in competition for same resource
• The carrying capacity for all animals will stay the same

Multiple Choice

Kudzu has overgrown many parts of southern Missouri and native ground plants have disappeared from the area. This is an example of:

• Parasitism between kudzu and the native plants
• A predator prey relationship between ground plants and kudzu
• Competition occurring between the native and invasive species
• Commesalism occurring between the kudzo and native plants

Multiple Choice

1. What makes a species invasive?

• Moving to a new ecosystem and taking resources from natives 
• Not having papers
• Species that can't adapt
• Plants that take up too much space

Multiple Choice

Form of pollution in which high-level consumers accumulate large concentrations of harmful substances is called:

• Biomagnification

• Invasive Species

• Extinction

• Habitat Fragmentation

Multiple Choice

What is overhunting?

Multiple Choice

Which of the following helps protect species from extinction?

• Laws and policies
• Wildlife refuges
• Conservation efforts
• All of the above

Multiple Choice

What is "overfishing"?

• Fishing out of season

• Catching fish faster than they can replenish

• Catching fish from the top of the food chain

• Catching more fish than what people eat

Multiple Choice

DDT in pesticides traveled up the food chain to Bald Eagles in a process called:

• Biomagnification

• Poisoning

• Acclimation

• Adaptation

Multiple Choice

Which of the following is an environmental impact of deforestation?

• (A)    Erosion and desertification

• (B)    Increased biodiversity

• (C)    Decrease in atmospheric carbon

Multiple Choice

What causes acid rain?

• High concentrations of sulfuric or nitric acid from pollution
• Fertilizer use
• Pesticide use
• CFCs

Multiple Choice

Acid rain can damage

• Drinking water sources
• Aquatic life
• Architecture/buildings
• All options are correct

Multiple Choice

The ozone layer protects us from

• UV rays
• CFCs
• Increased atmospheric heat
• Decreased atmospheric heat

Multiple Choice

Global warming is due to 

• Greenhouse gases
• Nitric and sulfuric acids
• CFCs
• Ozone depletion

Multiple Choice

Greenhouses gases

• Absorb and radiate heat
• Destroy the ozone layer
• Cause respiratory problems
• Create smog

Multiple Choice

Which of the following are greenhouse gases?

• Carbon dioxide
• Methane
• Water vapor
• All answers are correct

Multiple Choice

What is air pollution?

• Any harmful substance that builds up in the air 
• pollen, dust, gases
• industrial pollution
• chemicals in the water

Multiple Choice

What does this diagram illustrate?

• Ozone Layer
• The Greenhouse Effect
• Ultraviolet Radiation
• Layers of the atmosphere

Multiple Choice

What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

Multiple Choice

Which is one cause for Global Warming we discussed today?

• Burning Fossil Fuels
• Pollution from factories
• Both are causes for Global Warming

Multiple Choice

Which of the following natural events would be most likely to contribute to the cooling of Earth's atmosphere?

• Earthquake
• Hurricane
• Volcanism
• Monsoon