Warmer air is less dense than cold air.As air warm it rises while the cold air sink. Warmer air masses forces the cooler air to move which causes wind. These is illustrated when you open a hot oven the hotter air inside the oven rises into cooler air outside the oven.
Answer:
Yes, it is standard for each element. You can calculate it from the formula: n=A-Z, where n is the number of neutrons, A is the atomic mass and Z is the atomic number.
Answer:
we get rain and the water cycle grows our plants too
Explanation:
A catalyst is something that is used to lower the activation energy of a reaction, that is later regenerated by the reaction (but the equilibrium isn't altered). In this case, an enzyme is an organic (protein) catalyst, so that's your answer.
I see the picture can you send it to me