Pls asap - flvs btw

which statement is true?

select one:
a. the combustion of biomass can replace fossil fuels in conventional power plants.
b. hydroelectric energy uses the energy from the sun, which is a renewable resource.
c. oil is a non–renewable resource that is hardly ever used, so there is not a concern of depleting the earth's supply.
d. solar energy is a non–renewable resource that is used by many countries all over the world.

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.