What is hydroponics plz reply it quickly i need it urgently?

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Look at the photo of the leaf. which term best describes this leaf?

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?