Question

1. photic zone - after you have recorded the values of temperature, pressure, chlorophyll content, and salinity within the photic zone, review the pressure values recorded at various depths and identify the pressure at 200 m. 21.12 bar 8.34 bar 7. which type of living organisms are found in the photic zone? octopus, hatchet fish, sperm whales mackerel, sharks, turtles giant squid, angler fish sponges and deep sea anemones

Explanation:

Question 6:

The pressure in the ocean increases with depth. The approximate pressure at a depth of 200 m can be calculated using the hydro - static pressure formula $P = P_0+
ho gh$, where $P_0$ is the atmospheric pressure (approx. 1 bar), $
ho$ is the density of seawater (approx. 1025 kg/m³), $g$ is the acceleration due to gravity (9.8 m/s²), and $h$ is the depth. $P=1 + 1025\times9.8\times200\times10^{-5}\approx21.12$ bar.

Question 7:

The photic zone is the upper layer of the ocean where there is enough light for photosynthesis. Organisms like mackerel, sharks, and turtles are found in this zone as they are surface - dwelling or mid - water organisms that require light. Octopus, hatchet fish, sperm whales, giant squid, angler fish, sponges, and deep - sea anemones are more commonly found in deeper, darker zones.

Answer:

Question 6:

A. 21.12 bar

Question 7:

B. mackerel, sharks, turtles