Which is the definition of global warming? 1) using heat in a way that it will be available in the future 2) a gradual increase in the earth's temperature generally due to the greenhouse effect

What is the greenhouse effect? 1) the cutting down of trees 2) warming of Earth's surface

Are fossil fuels can be burned for energy? 1) Yes, they can be burned. 2) No, they can't be burned.

What do greenhouse gases do? 1) They make houses green. 2) They trap energy from the sun. 3) They don't trap energy from the sun.

What does sustainability mean? 1) using resources in a way that they will be there in the future 2) a natural fuel

What does landfill waste mean? 1) waste that is buried in the ground 2) recycling bottles and cans

Dinasours are ______________species. 1) extinct 2) endangered

What is "the introduction of toxic substances into an environment"? 1) deforestation 2) pollution

What do we call "long periods without rain"? 1) flooding 2) drought

Can you define deforestation? What does it mean?

What are the causes of climate change? 1) animals and plants 2) greenhouse gases, burning of the fossil fuels

Is coal a kind of fossil fuel? 1) Yes, it is. 2) No, it isn't.

Which helps to protect the environment? 1) deforestation 2) to recycle bottles and cans