Two waves travel through ocean, one with wavelength 3 m, one with 6 m. Which one has greater speed?

6m

Explanation: 6 is more than 3 and their both being measured by m

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.