Which layer of the Earth's atmosphere experiences the highest temperatures, even though it is farthest from the Earth's surface?

What type of rock is formed from the cooling and solidification of molten magma?

What is the SI unit of magnetic flux?

Which famous comet, with a period of about 76 years, was last seen in 1986 and won't return until 2061?

Which of the following is a type of igneous rock that forms from the cooling and solidification of lava on the Earth's surface?

What is the purpose of the mucus in the digestive system?

Which moon of Uranus is named after a character from William Shakespeare's play "A Midsummer Night's Dream"?

What is the largest planet in our solar system?

What is the SI unit of power?

What is the primary source of energy for the Earth's climate system?