How would the light wave’s speed change when going from liquid to the air? How would the light wave’s speed change when going from air to a solid?

How would the sound wave’s speed change when going from the air to a solid?

How would the sound wave’s speed change when going from a solid to a liquid?

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary

um i think it might be a car?