The frequency of a wave does not change as it passes from one medium to another. What will most likely happen if a light wave moves from the air into a solid?
O The wavelength of the light wave will increase.
The speed of the light wave will decrease.
O The wavelength of the light wave will remain the same.
O The speed of the light wave will remain the same.

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution

As kate is moving down the hill, what type of energy does she have? a. sound energy b. electrical energy c. light energy d. mechanical energy