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Question:
(i) List the different members of the marine mammalian groups.
(ii) Explain the term "stranding" and give some reasons why cetaceans strand?
(iii) Cetaceans, being predators at the top of the food chain, may be good indicators of the health of the oceans; however, their populations have declined considerably over the past decades. List some of the potential threats causing their decline.
(iv) What do you understand by the term "Echolocation"
(v) Give one difference between a marine turtle and a marine mammal.
(vi) List the species of marine turtles common in Mauritius waters.
(vi) What do we mean by "water quality"?
(viii) Why do we have Water -Quality Standards and Guidelines?
(ix) How is water quality measured?
The frequency corresponding to transition n= 2 to n =1 in hydrogen atom is: (1) 15.66 x 10 10 Hz (2) 24.66 x 10 14 Hz (3) 30.5
an activity on any two laws of chemical combination
The position and velocity of a small particle like electron cannot be simultaneously determined." This statement is: (1) Heisenberg uncertainty principle (2) Principle of
Explain heat of Combustion? Ans) The amount of heat liberated when single mole of any substance is completely burnt in oxygen is known as heat of combustion H is negative for he
Be's 4th electron will have four quantum numbers: n l m s (1) 1 0 0 +1/2 (2) 1 1 +1 +1/2
Q. Show the Purification of Metals? The metals obtained by metallurgical processes still have some impurities which persist from the ore or are derived from the flux or the fue
Non-benzenoid aromatics and Heterocyclic compounds There are aromatic compounds that have structural units which are not same from benzenoid type and are termed as Non-benzeno
feature of s, p, d,f block in periodic table
. Explain the construction and working of Calomel electrode
The atomic weight is the weight of an atom of a chemical element. For instance, the atomic weight of oxygen is 15.9994 and the atomic weight of hydrogen is 1.0079. Write a script
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