A fruit drink contains 90.% of water and 10.% fruit juice. How much fruit juice does 500.0ml of fruit drink contain ?

90% is 9 parts out of every 10, and similarly, 10% is 1 part out of every 10. Split 500 mL into 10 equal parts and you get 50mL each part. One of those parts is equal to 10%, meaning your final answer is 50. mL accounting for significant figures.

The answer is b metal denting

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy