Final Quiz

The current rate of extinction is

Ultraviolet radiation is particularly dangerous because

Why is the world's loss of biodiversity a source of concern?

Hydrogen gas could be used as a fuel source because

Where would ecologists be least likely to study primary succession?

What percentage of species have become or are endanger of becoming extinct?

The relationship between a Canadian Lynx and a snowshoe hare is an example of

The main factor that determines what type of plants grow in a biome is

Which of the following is a focus of environmental science not studied in ecology?

Which of the models below is a bathymetric map that represents the shape of the ocean floor?

How is freshwater used in industry?

Which of the following describes water and temperature in an ecosystem?

Which of the following is the most geologically active region on Earth's surface?

How did the Himalayan Mountains form?

Which gas makes up 78% of our atmosphere but needs to be changed by bacteria for plants to use?

The ozone layer is located in the

The carrying capacity of an environment for a particular species is determined by the

Which organism would be at the bottom trophic level of a food chain?

Which of the following best describes CO₂ levels in the atmosphere since 1958?

Which of the following best describes a population?

The majority of marine organisms are found in

Secondary pollutants form when

Renewable energy is energy from sources that

An endangered species is

The process of two species changing genetically in response to long-term, mutual, interactions

In developing countries, you are most likely to find biomass used

Which of the following is not a biotic factor in an ecosystem?

Earth's biodiversity is

Rain frequently results whenever

The average global temperature has ________ during the 20th century

Which type of building would most likely have poor indoor air quality?

Which of the following is a true statement about surface water?

Which of the following is an example of secondary succession?

Why doesn't photosynthesis occur in deep ocean water?

Which of the following are photosynthetic organisms?

________ contain energy that originally came to Earth from the sun

Parasitic worms would be classified as which type of water pollutant?

Which of the following is one way a person could conserve water?

If an insect eats a plant, how much energy from the plant is stored in the insect?

The death of many fish in a creek was found to be caused by a leaking chemical tank. 

What model is used to show the many feeding relationships that are possible in an ecosystem?

Deforestation is an especially serious problem in tropical rain forests because

Al of the following are ways to help save endangered species except

Which of the following is an advantage of nuclear energy?

Which of the following is used to remove poisonous gases from industrial emissions?

With respect to energy, Earth is a(n)

Two-thirds of sulfur dioxide that pollutes the air is produced by

Taiga is

Most of the pollutants in the ocean come from

Plants play a crucial role in the carbon cycle because they

The tundra

What part of Earth encompasses all areas where organisms can obtain the energy they need?

Bacteria that live in soybean roots are important to the nitrogen cycle because they

Which of the following represents nonpoint-source pollution?

Which of the following is not an environmental function of wetlands?

Which kind of organism obtains energy only from producers?

The difference between predator and parasite is that a predator

A true statement about greenhouse gases is that they

Compared to developing nations, developed nations have

Which of the following activities is the largest producer of primary pollutants in the US?

Competition for food can occur 

A species of plant that has exponential growth after it is introduced is best describe by which

The group that does not receive the experimental treatment in an experiment is the

The community of a pond in made up of all the

What is the relationship between groundwater and surface water?

If you visited savanna grassland, you would likely see

In the United States, which of the following would increase energy efficiency?

In the ________ zone of lakes, life is diverse and abundant

All of the following are primary air pollutants except

As the amount of ozone in the stratosphere decreases

Without the greenhouse effect, Earth's atmosphere would be ________ to support life

Orchids benefit by living on trees and the trees are neither harmed nor benefit

Consumers are organisms that

CFC molecules are a problem because

The percentage of energy put into a system that does useful work is

If an excess of nutrients such as phosphorous enters a lake, what is likely to occur?

Succession occurs mainly because

As a lake becomes more acidic fish are harmed by decreasing pH and what substance from soil?

The ecosystem approach to conservation is partly based on the idea that

An ecological footprint is the