What does p. e.m. d.a. s stand for?

can you use p. e.m. d.a. s in science?

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96