The determination of seawater density, and its variation, is therefore one of the most important tasks in oceanography. How do you think the density of sea water changes with water depth? The density of sea water depends on: temperature T, salinity S and ; pressure P, which increases with water depth. Oceanographers discuss the density of sea water somewhat differently than a chemist or physicist. The values of sea water density, labeled on the diagonal lines in the graph below, do not include the density of fresh water (1 gram per cubic centimeter g/cm 3) or the decimal places.
Woodpeckers eat nuts, berries, termites, grubs, and other bugs that live inside trees. It pecks through the wood of a tree to find the bugs living inside. That is why their beaks are so long... and strong! + 66 others found this useful.
Diet: Downy woodpeckers eat mainly insects found by hammering at dead wood. Their favorite seed is sunflower hearts and they also love peanut suet cakes. Downy woodpeckers also eat black oil and striped sunflower seeds, safflower, and cracked corn. They will feed at tube feeders and suet feeders. At Wild Bird and Garden we have foods that downy woodpeckers love like our Woodpecker Favorite seed mix, peanut suet, and sunflower chips.