3. Available energy increases as it is transferred from one organism to another in food chain. True or false

Can someone me with questions 12 and 13 plz.

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

Light waves can move through , but they travel fastest when they move through a(n) .