What are the adaptations in animals living under crushing pressure at great depths of ocean?

Considering the fact that aquatic photosynthesis accounts for 90% of the total photosynthesis, explain how photosynthetic organisms living at different depths of the ocean are able to adapt to perform photosynthesis.

What is action of dilute H_2SO_4 under pressure on ethoxy ethane?

When an ideal gas (Y = 5/3) is heated under constant pressure , then what percentage of given heat energy will be utilised in doing external work

If pressure at half the depth of a lake is equal to 2/3 pressure at the bottom of the lake then what is the depth of the lake.

If pressure at half the depth of a lake is equal to 2//3 pressure at the bottom of the lake then what is the depth of the lake ?

What is absolute pressure at a depth h below the surface of the liquid?

Under what conditions will a pure sample of an ideal gas not only exhibit a pressure of 1 atm but also a concentration of 1 mole litre^(-1) ( R = 0.082 litre atm mol^(-1) K^(-1) )

One end of a glass capillary tube with a radius r is immersed into water to a depth of h The surface tension of water is s and atmospheric pressure is p_0 . What pressure is required to blow an air bubble out of the lower end of the tube? Density of water is rho

It is said that elemental composition of living organisms and that of in animate objects (like earth's crust) are similar in the sense that all the majorelements are present in both. Then what would be the difference between these two groups? Choose a correct answer from among the following:

What is the pressure at the bottom of the ocean at a place where it is 3 km deep ? [atmospheric pressure =1.01 xx10^(5)Pa, Density of sea water =1030kg m ^(-3)]