B) The most used photo of Earth was taken by Apollo 17, the last manned mission to the Moon.

D) On April 22, 1970, Senator Gaylord Nelson created Earth Day to encourage people to do something about the world’s environmental problems. This inspired twenty million people to organize and help establish the U.S. Environmental Protection Agency. 

D) We can’t really recycle wet wipes, oil, and mirrors. The only thing we can do is make sure we dispose of them safely through trash collection.

C) More than 90% of all trash in the oceans is plastic which can hurt fish and other sea creatures if they eat it or get stuck inside.

B) Some bristlecone pines that grow high in the desert mountains of California and Nevada are more than 4,800 years old.

A) Human activity like the burning of fossil fuels, deforestation, and excessive farming are the main causes of climate change and global warming.

B) Recycling saves not only materials but also the energy needed to make new products. Recycling one aluminum can saves enough energy to power a TV for 3 hours.

D) Glass bottles can take up to 1 million years to decompose. But they can be easily recycled to make new bottles and jars. 

A) It is almost 1,800 miles, about as long as America’s most famous highway.

C) We can only drink 1% of all the water on Earth. The rest are oceans and water trapped in polar ice caps.