What is an abrifile?

Is it a chemical or a physical change when leaves change color it can not be both? How many kg in a newton? How many gallons of gasoline are used per year? In a controlled scientific experiment a scientist does what? What are the 3 most essential parts to an experiment? What is a concrete and abstract nouns? What is extusive? What is the air in the syringe made of? Which is composed of two conductors separated by an insulator? If you have a closed bottle of soda the force on the bottle cap due to the carbonation of the soda is 14 N if the aer of the bottle cap is 7 cm squared what is the pressure on the cap? What kind of scientist would you like to be and why? Can you vacuum clean a hard wood floor? Was there ever a hurricane name brooklynn? Example of reversed word? How does magma behave like a bubbles in a jar of honey? What waste product of photosynthesis is released to the environment? Why scientific researches are wastage of time? What do you call a person who doesn't sleep or get tired? What caused Darwin to develop his concept of evolution based on natural selection? What are the principle?