Matching Pairs Humans in Nature VocabularyOnline version Test your knowledge about the relationship between humans and nature with this fun matching pairs game! by Zuzana Birošová 1 greenhouse gas 2 environmentalist 3 wildlife 4 carbon 5 climate change 6 pollution 7 renewable energy sources 8 ecosystem 9 recycle 10 reforestation to make something new from materials that have been used before a chemical substance contained in all plants and animals the contamination of the environment, by industrial waste products or chemicals a gas in the atmosphere that stops heat from escaping into space Long-term alteration of temperature and typical weather patterns animals, birds, insects, etc. living naturally in the wild a community of living organisms and their environment the planting of trees and plants to help a damaged or destroyed forest recover a person who protects the natural world and educates others about environmental problems clean energy that comes from natural sources or processes that are constantly replenished