How would you respond to someone who made the following statement? The greenhouse gas theory that certain gasses (such as water vapor and carbon dioxide) trap heat in the atmosphere and thus influence the average temperature and climate of the earth is not a reliable idea because it is only a scientific theory.

Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:

What are the student's observations and inferences before he starts his investigation?

1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)