Which two explanations are based on personal beliefs? I A. Certain mineral crystals have properties that help protect the

body from illness.

IB. A constellation's position in the night sky can be used to predict

events in a person's life.

I C. Medical data gathered over many years show that lack of

adequate sleep causes health problems.

D. Observations using microscopes reveal that all known organisms

are composed of tiny structures called cells.

I E. Data gathered during experiments show that there is an inverse

relationship between the force of gravity and distance.

The correct options are A and B

Explanation:

Personal beliefs can be described as beliefs that have not been scientifically proven. These beliefs are generally as a result of religion, culture or tradition. Scientifically in theory, these beliefs lack clear path of possibility. For example, being in possession of certain mineral crystals in order to help protect the body against illness have a little possibility of being scientifically (in theory) explained. There is also no scientific evidence to support this claim.

There is also no scientific evidence to support the idea of the constellation's position to predict  events in a person's life. This also has little possibility of being theoretically explained in science.

It should however be noted that there are exceptions/coincidences that suggest these events happen as it has been listed in the two options.

change tension

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.