In some communities, forests are cleared through burning, and the deforested land is used for farming. Which of these is a negative consequence of this practice?
Deer are introduced into a grassland ecosystem and their population increases considerably. If the deer population continues to grow, which is the MOST likely outcome for the ecosystem?
Which of these is a threat to the survival of an ecosystem?
Why is a reduction in biodiversity due to loss of plant populations especially destructive to an ecosystem?
Which of these explains why an
ecosystem is healthy when it has a variety of species?
Which of these living things in a grassland ecosystem depend on the presence of a variety of bacteria and other microorganisms in the soil?
Which change in the environment would have a negative effect on the survival of a species in an ecosystem?
New Zealand is home to many flightless birds, such as the kiwi, which build their nests on the ground. Over time, ground predators such as possums have been introduced. Which statement could be a possible effect on the kiwi?
In the 1800’s, domesticated rabbits from Europe were brought to Australia. The rabbit population increased so quickly that it caused severe damage to agriculture and the natural environment. Even though scientists have tried to reduce the rabbit population, it continues to be a problem today. Which statement is the BEST conclusion from this series of events?
Nonnative plants can take over areas that were once populated by native plant species. Which abiotic process is LEAST likely to cause the invasion of nonnative plants?
When hunting by humans causes a species to becomes extinct, this may produce damaging effects throughout the ecosystem of the extinct species. What is the cause of this damage?
Look at the diagram of a stream with toxic chemicals flowing into it. This diagram models how toxic runoff can pollute a stream and also
Which of the following will reduce a home electric bill?
Which two behaviors BEST demonstrate stewardship?
Coal is used for generating about 53% of the electrical energy in the US. Which of these environmental issues is directly contributed to the burning of coal?
Using solar panels to convert solar energy into electricity may help slow the depletion of which resource?
Turning off the light when leaving a room is an example
Which would be a possible way to prevent wildlife species from becoming endangered?
The Miami Blue butterfly is an endangered species is South Florida. Which factor has MOST likely caused the population decline of this butterfly?
Which statement describes a harmful effect of clearing rainforests for farmland?