While a sample of liquid is freezing, its thermal energy a. increases.
b. decreases.
c. remains the same.
d. is transferred into phase energy.

B

Explanation:

I'm very sure it decreases

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )