A positive or direct relationship is one in which the two variables (we will generally call them x and y) move together, that is, they either increase or decrease together. In a negative or indirect relationship, the two variables move in opposite directions, that is, as one increases, the other descremases
Answer:
Mike can travel 80 Km in 4 hours
Explanation:
Wavelength = speed of light/frequency
Answer is

they absorb sunlight and turn it into glucose I think.