Which of the following is a characteristic of mixtures? A. Mixtures can only be in solid and liquid form. B. Substances that are mixed together retain their properties. C. You can always see the different parts of a mixture. D. You can only see the different parts of a mixture when it is in liquid form.

The correct choice is B.  

Mixtures retain their properties because science has proven it. Take a bag of trail mix for example. Those raisins and marshmallows and m&m’s can each be separated. When you take them out, they keep their same texture.  

Is not correct because mixtures can be solids (Trail mix is one example)  

Correct  

Is not correct because sometimes it cannot be seen (Lemonade powder and water is one example)  

Is not correct because trail mix is an example.

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.