How is the nuclear structure of an atom similar to the non-nuclear structure?

How have the greenhouse gasses increased from the year 2000 to 2018

Which of the following is a physical change? a. burning a piece of wood b. sawing a piece of wood in half c. rust forming on an iron fence d. a copper roof changing color from orange to green

Northern was a learned a fairly cold climate caused by see one from the atlantic ocean, but se was real and tends to be much warmer, sonia look good causes difference. a. cool wins cannot blow across a leg into the south mountains, b. prevent cold air from blowing over into south sea, c.the south is at much higher elevation, so it is closer to the sun, d. suppose early and has a sperience a drastic climate change in the past few years.