How does time affect the physical weathering of a rock? A. The longer the rock has been exposed, the more it has weathered
B. Over time, the rock will become flat, slowing the rate of physical weathering
C. Time does not affect physical weathering, only chemical weathering
D. Rock weathers the most when first exposed, then more slowly

Which part of cellular respiration must occur before any of the other steps can occur

Use the drop-down menus to match each part of the scenario to the correct scientific practice. akira records the speed of a reaction without a catalyst and then with a catalyst. akira creates a reaction without a catalyst and repeats the reaction with a catalyst. akira turns in a written lab report to his science teacher. akira wonders, "will adding a catalyst speed up this chemical reaction? " akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowers the activation energy needed to get the reaction started.

Compare using dna matching in forensic science to hitting a target with a gun. dna analysis would be most similar to which scenario"