Most stars spend the majority of their lives converting core hydrogen to what? Select all that apply.

A. iron

B. silicon

C. helium

D. carbon

E. oxygen

F. energy

Describe deep sea trenches and abyssal plains and their relative ages.

Which nations are run by a prime minister?

1. When air temperature increased, what happened to soil temperature? When air temperature decreased, what happened to soil temperature? Sorry there is no subject for science

Which of the following best describes soghra from the reading

Which mountain is sacred to Australian Aborigines? A. Mount Kosciuszko B. Aoraki C. Uluru D. Mount Mansfield

Why tourism is increasing?

How will the Rusty-Spotted Cat survive if it's habitat was changed?

What is the imaginary line that circle the Earth exactly halfway between North and South Poles

Who is said to be the first modern archaeologist

Using four or more complete sentences, discuss the standard of living in Western European countries.