How can people conserve natural resources
1. reducing use of fossil fuels using materials as much as possible and recycling materials to make new products
2. reducing use of fossil fuels for using materials as much as possible and reducing recycling materials
3. using more fossil fuels reusing materials as much as possible are recycled materials to make new products
4. reducing use of fossil fuels reducing the use of public transportation from recycled materials to make new products

The answer is A

Explanation:

The answer is A because the other answers include reducing recycling, which is good for the environment

When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about 1.3. Specific gravity is actually the difference in the weight of water in comparison to a specific fluid. It is measured by a hydrometer. The amount of charge in the battery is normally measured by the specific gravity of the battery. The specific gravity of water is 1 and anything less than one is considered less dense while anything that has a specific gravity of more than 1 is considered more dense than water.