Sound travels about 1460 meters per second in water. how deep is a wreck on the sea floor if it takes about 4 seconds for a sonar signal to return following transmission? a) 2920 meters b) 1460 meters c) 5840 meters d) 365 meters

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..

answer: the correct answer for the fill in the blank is rods.

rods are the specialized photoreceptor cells that are present in the retina of human eye. they are responsible for vision in the night time ( also called scotopic vision). they have very low visual acuity and color distinguishing ability.

as they are responsible for vision in night time, therefore they are found predominantly in the nocturnal animals.