What is the apparent brightness of a star? How bright it actually is
How bright it is compared to the sun
How bright it is from Earth
How bright it is from a certain distance

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.