There are multiple layers of the atmosphere that are determined by their temperature.
True
False
In the picture it is question 2

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

Based on its chemical properties, identify the position of each chemical family on the periodic table.