Which of the following is a natural habitat for marine life?, . Coral reef , Desert, High mountains, Skyscraper, The process of plants losing their leaves in autumn is a natural _______., destruction , cycle , pollution, extinction, Look at the picture. This activity helps protect the environment by ______., burning waste  , cutting trees, planting trees, using plastic, An ______ includes all the living things in a particular area and their relationships., ecosystem , individual, atmosphere, evolution, Global warming is mainly caused by the build-up of ______ in the atmosphere., oxygen  , nitrogen, greenhouse gases, fresh air.

ENVIRONMENT

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