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