An astronomer measures the light coming from two stars, star a and star

b. they appear to be equally bright. from other measurements, she knows that star b is actually twice as far away as star

a. what can she conclude?

You have taken an initiative to start an organization for saving our environment. • Choose a name for the organization • List the work done by this organization

Based on Kepler's third law, what is the distance from the Sun to Jupiter? Round the answer to four significant figures.

Brazil is the largest South American nation and has the least amount of rainforest of all nations on the continent. (Map/4.02/4.03) true or false

Can any area or mountain have a volcanic eruption? which areas are prone to volcanic eruptions?

How do minerals form by evaporation?

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