Question

What is Velocity ? .​

Answer 1

Answer:

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.

Answer 2

Answer:

You don't need to say thanks. You deserve it and I should be the one saying thanks☺️☺️ Ummm. I wanna ask you something,will you be my bro?(If you don't mind)

Explanation:

The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth. The biosphere is virtually a closed system with regards to matter, with minimal inputs and outputs. Wikipedia

Energy flow