Charissa says that bread goes through a chemical change when it is toasted. Which of the following observations would least support her conclusion? A. a change in the smell of the bread

B. a change in the color of the bread

C. a change in the texture of the bread

D. a change in the shape of the bread

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers

Select the correct answer. what does the process of natural selection involve?