Question

Which hypothesis is testable?
Plants that are grown by using brand A fertilizer taste best.
Plants that have flowers look prettier than plants that do not have flowers.
Plants will eventually die off if global warming trends continue.
Plants make more sugar on sunny days than on cloudy days.

Answer 1

@Nurali

Answer 2

i think Plants that are grown by using brand A fertilizer taste best is testable.

Answer 3

thanks @Nurali