Which factor will decrease photosynthesis? abundant carbon dioxide not enough water balanced ph increased light intensity

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity