The Strength of an electromagnet can be increased by reducing the number of turns on the wire coil true or false

the answer is true

Explanation:because as u add more coil/wrap more coil around the nail the field  get stronger and stronger to attract more nails

Hope this helped

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.