Jawapan

2016-03-16T19:50:36+08:00
Earth atmosphere is being a filter to a ultravoilet that might be dangerous for living things
2016-03-16T21:00:36+08:00
Earth's atmosphere makes conditions on Earth suitable for living things. The atmosphere contains oxygen and other gases that living things need. The atmosphere also keeps Earth's surface warm and protects Earth from dangerous radiation and meteoroids. Pollutants are harmful substances in the air, water, or soil.