Question

i)the reservoir of water present above the impervious layers of rock is called ____
ii) sewers are generally made of _____ or _____.
iii) oxygen diffuses from air in the _____ to blood in the capillaries in lungs
iv) the solid that floats in the sedimentation tank ____

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Answer 1

Answer:

i) The reservoir of water present above the impervious layers of rock is called aquifer.

ii) Sewers are generally made of sewage sludge or septic tank waste.

iii) Oxygen diffuses from air in the alveoli to blood in the capillaries in lungs.

iv) The solid that floats in the sedimentation tank are rag, clog pipes, wood,etc.

Thank this as fast as you could do in one sec.

Answer 2

Answer:

$aquifer \\ sewage \: sludge \: or \: septic \: tank \: waste \\ alveoli \: \\ rag \: clog \: pipes \: wood \:$