What is the primary difference between scientific theories and scientific laws?
a.
scientific laws can change over time as new technology is developed and new data is collected.

b.
scientific laws have been proven without exception under certain stated conditions.

c.
scientific theories are often discarded and replaced by completely different theories.

d.
scientific theories are educated guesses still need to be verified through experimentation.

B.

Scientific laws have been proven without exception under certain stated conditions.

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.