Section 3
What is called a decayed plant or animal matter?
Humus
what is the biggest ecosystem?
Tropical rain forests
What is the name of the flightless bird that was discovered in 1507 and was extinct by 1681
Dodos
When petroleum is out of the ground what is it called?
Crude Oil
Renewable resources include what?
Water, Soil, Trees, Plants, and Animals
When were dodos found?
1507
What soil is rich in minerals and humus?
Fertile Soil
A what is a place that plants and animals live in?
Habitat
The main alternative to fossil fuels is what?
Hydroelectric Power
What is it called when we break something or use it and Earth creates another one in the same spot?
Renewable Resources
When the plants and animals die, their remains break down and provide what?
Nutrients for the Soil and New Plant Growth
What is a place where a group of plants and animals that depend on each other for survival and the environment in which they live?
Ecosystem
A habitat is where what lives?
Plants and Animals
Most natural resources are what?
Raw materials for other products
What are some of Earth's most important Natural resources?
Air, Water, Soils, Forests, and Minerals
Soils help determine what plants will grow and how well. Because soils support plant life, they play an important role in the what?
Environment
When were dodos extinct?
1681
factors such as what? limit where plants and animals can live?
Temperature, Rainfall, and Soil Conditions
Oil is also used to make what?
Petrochemicals
How long does it take for Nuclear Energy to be safe?
Thousands of Years
What provides energy to the plants?
The Sun
What are some examples of an ecosystem?
Garden pond, a City Park, a Prairie, and a Rain Forest
The interconnected parts of an ecosystem exist in a what balance.
Fragile
a what is any material in nature that people use and value?
Natural Resources
Nonrenewable resources that formed from the remains of ancient plants and animals is called what?
Fossil Fuels
What causes the soil to erode?
Clearing Land
Where were dodos found
Mauritius
Nuclear energy obtain energy by doing what?
Splitting Atoms
What country is rich in oil?
Saudi Arabia
Trees, oil, and metals are all examples of what?
Natural Resources
What helps determine what plants will grow and how well?
Soils
Extreme changes in ecosystems can cause species to die out, or become what?
Extinct
What is it called when we can repair and prevent resource loss?
Reforestation
Resources power vehicles, produce heat, and generate what?
Electricity
What is heat within the earth?
Geothermal Energy
What environment causes desert like conditions.
Fragile Dry Environments
Which uses the energy to make their own food. Either directly or indirectly, in the forest?
Plants
What is another name for oil?
Petroleum
The most important fossil fuels are what?
Coal, Petroleum, and Natural Gas
What is it called when we clear trees?
Deforestation
What is it called when we clear land and the soil does
What?
Erosion
what are some things that people do to clear land?
Farmland, Lumber, and other reasons
What is it called when earth cannot replace something that we break down or use?
Nonrenewable Resources
Energy resources can do what?
Power Vehicles, Produce Heat, and Generate Electricity
Mineral resources include what?
Metals, Salt, Rocks, and Gemstones
What is it called when plants go dry and can lead to desert like conditions?
Desertification
What can cause plants and animals to die out or become extinct?
Extreme changes in ecosystems
We mostly use coal for?
Create Electricity at Power Plants
what is the cleanest burning fossil fuel?
Natural Gas
What is a reliable resource for heat?
Coal