Explain (in detail) about comets and their connection to meteor showers in the sky.

Explanation:

Comets are stellar objects that orbit the sun and are made mainly of ice. They usually have a tail due to the evaporization by the effect of the sun's light. Meteors are a part that separeted from a comet or an asteroid, and this are the ones that enters the earth, and when there are a lot of them entering, it is called meteor shower.

We can see meteor shower usually on plain sight due to that the velocity this objects have is so great that the resistence of the air in earth's atmosphere makes them evaporize partially or completly, and we see this as a bright light in the sky.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

it would be c. predictability