I'd say protein synthesizer.
False. Evaporation is a physical change it is not a chemical change. It is a physical change because it is going from the liquid phase to the gas phase. It is not a chemical change because it is still made of two hydrogen atoms and an oxygen atom.
If you can connect air pollution leads to global warming and thus climate change.
So in order to decrease pollution levels
1. Lessen the usage of vehicles (motorised)
2. Industrial waste should be treated properly before releasing into the atmosphere
Answer is a. neolithic where they use wild and domesticated crops and domesticated animals
Capillaries have thin walls, only one cell thick, that allow them to effectively perform their function.