A. Because red rays are the least refrangible of all, and not being bent back by the air (like blue and green), strike upon the horizon, and give a tinge to the morning clouds.
Q. Why is not the reflection of clouds always alike?
A. Because their size, density, and situation in regard to the sun, vary perpetually; so that sometimes one colour is reflected, and sometimes another.
Q. What regulates the motion of the clouds?
A. The motion of the clouds is generally directed by the winds; but sometimes electricity will influence their motion also.
Q. How do you know that clouds move by other influences besides wind?
A. Because we often see in calm weather small clouds meeting each other from opposite directions.
Q. How do you know that electricity affects the motion of the clouds?
A. Because clouds often meet from opposite directions; and (after they have discharged their opposite electricities into each other) vanish altogether.