Please help, thank you!!

a) What is the value of the 4 in the number 546 210? Give your answer in words.

b) Write the number twenty one thousand and sixty four in figures.

c) Which of these is the correct way to write 36 000 in words?

A: Thirty six and a thousand

B: Three million and six thousand

C: Three six thousand

D: Thirty six thousand

the answer is a 3.8cm

explanation:

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.