Which problem can NOT be answered by experiment? A)Do ultraviolet rays cause skin cancer?

B)Does a certain drug kill the AIDS virus?

C)Which wavelength of light has the most energy?

D)Did continental drift cause the extinction of the megalodon?

The speed of  sound:   sound travels  at different speeds depending on what it istraveling through. of the three mediums (gas, liquid, and solid)  sound waves travel the slowest through  gases, faster  through  liquids, and fastest  through  solids.

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.

Ithink its because more have died recently than in the past.