Researchers believed that floral scent can sometimes improve a person’s learning ability. they set up an experiment in which each of 22 subjects completed sets of pencil-and-paper mazes. each subject wore a floral-scented mask and an unscented mask, in random order. the researchers measured the time to complete the sets of mazes. this experimental design is:

madagascar produces the most

d is the logical answer but im not a 100% sure

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.