Creating green spaces would be classified as a human activity for the environment. Negative or positive?

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Which is the most accurate name for the ionic compound cas?