Which has not actually been seen by astronomers?

a. Main asteroid belt

b. Oort cloud

c. Kuiper belt

Which sentence from "Black Hole Beginnings" contains a cause-and-effect relationship? More matter mounts up on the outside, increasing the pressure on the inside. Instead it is a dramatic melding, or blending, of atoms, called nuclear fusion.

A lens can simply be a curved piece of glass. true or false

Jon deposits $15,000 in an account that earns 6% interest, compounded annually. No other deposits are made to the account. After 10 years, Jon decides to use the investment to purchase a new home. The purchase requires a down payment of $21,500.

What evidence is there that gravity exists outside of what they have explored

Looking for a friend how can talk on google hang outs

If you took a trip to New York City and wanted to find a specific location downtown, what map would you use and why?

Nami is very good at research, is skilled at developing instructional materials, and knows about libraries and information systems.

What is 20+2 this is to pay someone back

Which of the following performance scores will be considered when you apply to college

What's the word that means close to the ground"