Greenhouse Gases
What is a greenhouse gas? What does it do?
A greenhouse gas is a type of gas that traps heat from the sun in the atmosphere.
What is a natural resource?
Anything on Earth that humans use
What is it called when there is no more of a certain plant or animal species?
Extinct
About 96.5% of Earth’s water is found in _____________
Our oceans
What is the difference between an abiotic and biotic factor?
An abiotic factor is something no living, a biotic factor is something living or has lived
What are the names and compound symbols of the three greenhouse gases?
Water Vapor (H20), Methane (CH4), and Carbon Dioxide (CO2)
Name 3 nonrenewable resources
coal, natural gas, and oil
What is deforestation?
Deforestation is when humans intentionally cut down forests with no regulation, destroying the life within.
What are atmospheric convection currents?
The rising of warm, less dense, air and the sinking of cooler, more dense air
What does biodiversity mean?
The variety of living things in an ecosystem
What would happen to Earth if there were no greenhouse gases? Too many greenhouse gases?
The Earth would get too cold or too hot since there is no regulation of temperature.
Why should both renewable and nonrenewable resources be conserved?
Because overuse can cause environmental hard
What is a specific example of a negative human impact and how does it affect the environment around it?
Examples: Water pollution from toxic wastes creating algae and lack of life in the waters and surrounding areas.
The Coriolis effect is caused by —
Earth's rotation
What happens when resources are limited?
Populations decrease
Why is Oxygen critical for most complex life on Earth?
It allows organisms to produce energy.
What is an example of OVERUSING a renewable resource?
Cutting down all trees without replanting
Which situation would most likely cause a species to become endangered first? Why?
A. A mild, seasonal drought
B. The introduction of a predator and habitat loss at the same time
C. An increase in food supply
D. Expansion of protected land
B because both lead to less prey and living things, meaning that they will be reduced doubly quickly.
How do deep ocean currents benefit marine ecosystems?
They move oxygen and nutrients
What is the definition of a producer?
An organism that makes its own food through the process of photosynthesis
What percent of the Earth is Oxygen? Nitrogen?
78% Nitrogen, 21% oxygen.
Name 3 renewable resources and an example of each
Sunlight- solar panels
Wind- wind turbines
Hydropower- a dam
Give an example of one animal or plant that is threatened to go extinct. How did it become threatened? What human activities and impacts led to this?
White Rhino or elephants in Africa - Over hunted/poached for their tusks by humans reducing the population greatly.
What are the two different types of currents and how do they formed?
Surface currents- formed by wind
Deep ocean currents- formed by density based off the temperature and salinity
What is the Law of Conservation of Energy?
A law that states energy cannot be created or destroyed, only transferred.