30 POINTS HELP ASAP PLEASE Air in the atmosphere continuously moves by convection. At the equator, air rises; at the poles, air sinks. This occurs because— the air at the equator is warmer and less dense and the air at the poles is cooler and more dense
the air at the equator is warmer and less dense and the air at the poles is cooler and more dense

the air at the equator is cooler and more dense and the air at the poles is warmer and less dense
the air at the equator is cooler and more dense and the air at the poles is warmer and less dense

the tilt of the Earth on its axis causes day and night
the tilt of the Earth on its axis causes day and night

the air at the equator and poles are moved by the rotation of the Earth

Ali hypothesized that increasing fertilizer would increase plant growth. four groups of thirty similar plants were given 0 to 15 ml of fertilizer, as shown in the graph. the change in plant height for each group over a two-week period was averaged and recorded. plant group fertilizer added (ml) avg. growth (cm) a 0 4 b 5 6 c 10 8 d 15 3 what is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.