What best describes the same patterns of tides on earth?

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Which one of the following research methods can show cause and effect

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