Read and complete the sentences with the words and phrases from Passage A.1. As we have learned, these greenhouse gases _________ energy in the atmosphere and make the Earth warmer.2. You'll be able to restart it quickly, and it'll take less energy than shutting it down and then __________ it.3. Planting trees is fun and a great way to _________ greenhouse gases.4. When you do the recycling, you send less_________ to the landfill and you help save natural ________ , like wood, oil, and metal.