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

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

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

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

Are dogs endangered species?

Can you define deforestation? What does it mean?

Dinasours are ______________species. 1) extinct 2) endangered

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.

Are "melting ice caps" cause or result of climate change? 1) cause 2) result

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