Answer:
Sorry , I don't know but still I will take points .
There are 8 types of fossil fuels. The 8 types of fossil fuels are Crude Oil, Gasoline, Diesel, Fuel Oils, Natural Gas, Coal, Fuel Regulations, and Petroleum.
The controlis the plant with just water. The independent variable is the plants. The dependaent is the amout of salt in the water.
The indepedent is the trees. The dependent is the greenhouse or no greenhouse.
Answer:
sorry i dont have it. have a good day
Explanation:
When a candle burns, both physical and chemical changes occur. ... So, the melting of wax and vapourisation of melted wax are physical changes. Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.
When a candle burns, the oxygen in the air reacts and forms carbon dioxide. A new substance, the CO2 is formed. So it is a chemical change. When the candle melts, no new substance is formed and the molten wax can be again solidified and made into a candle and it is a reversible change.