SEV 1
Biomes, Plants, Animals
Biomes, Plants, Animals
All of the communities (biotic factors) living together in an area, with the abiotic factors is called an ______.
ecosystem
Greenhouse gases such as carbon dioxide trap heat in the Earth's atmosphere which leads to ________.
global warming
What is the main fuel source used in nuclear power plants?
uranium
The largest contributor to human-made carbon emissions is:
Driving and transportation
The ultimate source of energy is the
sun
All of the same species living together in an area is called ______________.
population
How does the concentration of carbon dioxide in the atmosphere affect climate?
As carbon dioxide concentrations increase, temperatures increase.
A resource, such as oil, petroleum, or coal, that cannot replenish as fast as it is being used is called
nonrenewable
Human activities impact an ecosystem. Raising grazing animals is an activity called
ranching
In the pyramid, only about 10 percent of the __________ available within one trophic level is transferred to organisms at the next trophic
energy
In terms of biological processes, the 1st Law of Thermodynamics states that energy
can neither be created nor destroyed, only transformed
One of the main processes that CO2 is removed from the atmosphere is _______________.
photosynthesis
What are examples of renewable resources?
wind, sun, water,
Which human action has the least effect on greenhouse gas emissions?
solar power energy
The “Three E’s” of sustainability stand for:
Environment, Economy, Equity
What is the process called in which plants make their own food _______, and what do we call these plants _________?
photosynthesis, autotrophs
The trapping of infrared radiation from the sun by gases on the planet that warm the atmosphere is called ____________.
the greenhouse effect
Which statement correctly describes a benefit of nuclear energy?
It releases fewer greenhouse gases than burning fossil fuels.
Landfills are a major source of what greenhouse gas?
nitrous oxide
What is an organism that lives on or in another organism and derives its nutrition from that organism?
parasite
A type of relationship between two organisms in which one organism benefits and the other organism is neither harmed nor helped is called ___.
commensalism
What causes La Nina? El Nino?
La Nina- cooling water in the Pacific Ocean off the coast of South America due to strong eastern trade winds
El Nino- warm water in the Pacific Ocean off the coast of South America due to weak eastern trade winds
What is a major disadvantage of fossil fuels compared to nuclear energy?
Fossil fuels produce less energy per unit of fuel.
Name 4 human activities that have a negative effect on the earth and its natural resources
overpopulation, deforestation, pollution, burning fossil fuels
The greatest biodiversity on earth is found in the __________ biome.
tropical rainforest