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Biology; Chemistry; Physics: Post your doubts here!

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anyway, whats the answer to the other question. aquatic plant dont die without oxygen. they can produce it themselves but when aquatic plant die bacteria decompose them by aerobic respiration and oxygen decreases.
yeah i did that one wrong too.......... thing is when the layers of algae grow, the lower layers die, fall to the bottom, and decompose............ In the decomposition process, they use up oxygen, so it comes first
 
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also remember that an element always has an oxidation state of 0...... H2, Cl2, S, etc all of them have 0 state, when they are elements and not ions
Thankyou once again, could you please explain me the method of making ionic equations aswell
 
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Someone please tell me how to make ionic equations, i really need to know them because they are asked in almost every exam, so pleasee helpp!
 
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can we draw a speed time graph from a distance time graph??Question of my lifetime..
i guess you could make one, if the rate of change of distance is constant, meaning the speed is constant, leading to zero acceleration. Don't know if there is acceleration in a distance time graph
 
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