The division of earths history into similar units makes up the

a. eras

b. geologic time scale

c. periods

d. sequence of events

Which occurs when two musical instruments use resonance? A. One instrument is louder than the other. B. They are out of tune with each other. C. They are both quiet. D. They are both loud.

The sun radiates most strongly at a wavelength of about 550 nm. a star that radiated most strongly at 400 nm would be

True or False A scientific law expalains that something will happen under certain circumstances?

Which conclusion is supported by the data in the table? O An increase in the mass of an object causes the same decrease in the gravit An increase in the distance between the objects causes the same decrease i An increase in the distance between the

Which is faster a bowling ball or a golf ball

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.

What is the angle between a rigid object and the force applied to it that yields torque using the equation T=Fd?

What is the difference between speed and velocity and give an example.