Black sand can be found when tides are particularly high sediment contains volcanic ash local residents prefer it to light sand all the sand is washed away from the beach

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Why does the skin of your finger shrink when you wash clothes for a long time?

If you relate the doppler effect on sound to the color of light waves, a police car would be the color as it approaches and the color as it recedes away from the observer.