________ food is usually produced without chemicals.
Organic
What is also known as CO2?
Carbon dioxide
Brown bears live in that n________ r_____________.
nature reserve
This is a _______________ city.
coastal
Deforestation, water pollution and soil erotion and environmental ____________.
threats
Our planet's ____________ is composed of about 78% nitrogen and 21% oxygen.
atmosphere
When you g_______ v_______ you avoid c_____________ animal products.
go vegan, consuming
Bamboo is considered an e___________ f_________________ material.
enviromentally friendly
Water, wind, natural gas and metals are examples of _________ ___________.
natural resources
We are trying to run our house on ___________ ____________.
solar power
____________ _____________ comes from resources that are naturally replenished; most of them are sustainable.
Renewable energy
______________________ is one of the effects of _______________, which also includes rising sea levels and changes in plants' blooming times.
Global warming; climate change
These are all...
endangered species
Coal, gas, oil and wood are examples of ________ ________.
fossil fuels
What are greenhouse gases?
Greenhouse gases act similarly to the glass in a greenhouse: they absorb the sun’s heat that radiates from the Earth’s surface and trap it in the atmosphere.