What is the frequency of a wave with a speed of 1250 m/s and a wavelength of 5meters

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?