The stars generate helium from hydrogen at core temperatures of about 10 million degrees. why does it require even higher temperatures to create elements with greater numbers of protons than helium?

What areas of north america would be most vulnerable to climate change?

Explain how nationalism can eliminate an international boundary.

Which of the following contains the milky way galaxy? A. The location group B. The moon C. The solar system D. The sun

In the Arab world, Yasser Arafat would be viewed as a

What waterfall in Venezuela has a longer drop than any other waterfall in the world?

Who was the first person to reach the south pole?

An atom of element A has 50 protons, what would the elements atomic number be?

Name 2 bodies of water associated with Germany

6. Which is a farming technique that could improve the soil and the environment? A using fueled machines that will turn the soil continuously B creating undisturbed layers of mulch in the soil C placing inorganic chemical fertilizers in the soil D

Which is an example of kinetic energy? A) a ball rolling across the floor B) the energy stored in gasoline C) a stretched spring D) a book sitting at the top of a bookshelf