Mercury's surface has long cliffs called
a. maria
b. scarps
c. trenches
d. mountains

B. Scarps

Explanation:

The surface of Mercury is made up of long cliffs also known as SCARPS. When the inside of Mercury cools, it causes the crust of the planet to reduce or shrink in size. When the crust shrinks in this manner, it results in the crust been broken along the inclined plane, due to a type of fault called the thrust fault.

The broken crust is then pushed forward and upwards leading to the formation of cliffs with long curves and turns which is known as SCARPS.

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.

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