Arrange the following steps of sewage treatment in a sequential order.
(A) Primary effluent passed in aeration tank
(B) Activated sludge is formed
(C) Filtration and sedimentation of sewage
(D) Aerobic microbes grow into flocs
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Identify the correct statements about Amazon rain forest.
(A) They are called lungs of the planet
(B) The fall in tundra region of USA
(C) They have the greatest bio-diversity on earth
(D) They are being cut and cleared for cultivating soyabean
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The identifying features of the embryo of monocotyledons are:
(A). Coleoptile
(B). Root cap enclosed in coleorhiza
(C). Pericarp
(D). One cotyledon
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Match List-l with List-II

List-l (Scientists)	List-II (Discoveries)
(A) Frederick Griffith	(I) Genetic Code
(B) Francois Jacob and Jacque Monad	(II) Semi-conservative mode of DNA replication
(C) Har Gobind Khorana	(III) Transformation
(D) Meselson and Stahl	(IV) Lac operon

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Which one of the following statements explains autogamy?

Identify the incorrect statement about the human genome -

Which of the following statements is/are true with respect to the MTP (Amendment) Act, 2017 enacted by the GOI?
(A) A pregnancy may be terminated on certain considered grounds within the first 12 weeks of pregnancy on the opinion of two government registered medical practitioners.
(B) This act intends to reduce illegal abortions and consequent maternal mortality and morbidity.
(C) If the continuation of pregnancy involves a risk to the life of a pregnant woman, it can be terminated by the opinion of 3 government registered medical practitioners.
(D) If there is a substantial risk that the child born will be seriously handicapped, pregnancy can be terminated even if lasted for more than 12 weeks, but fewer than 24 weeks by the opinion of two government registered medical practitioners.
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Match the wavelength of light absorbed given in List-l with the color of light absorbed in List-ll

List-l(Wavelength of light absorbed(nm))	List-lI(Colour of light absorbed)
(A) 535	(I) Yellow
(B) 475	(II) Red
(C) 600	(III) Blue
(D) 498	(IV) Blue Green

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Which one of the following is a false fruit?

Answer the question on the basis of passage given below :
One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from +2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Sc, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
Oxidation state of scandium is

A runs 9 times slower than B. If B gives A a start of 80 meters, how far must be the winning post on the tracks so that A and B reach there at the same time?

Which of the following statements are correct:
A. In semiconductor diodes carriers are generated by photo-excitation.
B. When the photo diode is illuminated with light with energy (E) > Energy gap (Eg) of the semiconductor, then electron-holepairs are generated.
C. Photovoltaic devices convert electricity into optical radiation.
D. Photodiode can be used as a photodetector to detect optical signal.
E. Zener diode specification should be taken as per the required output voltage.
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The interaction between two species where one species is benefitted and the other is neither benefitted nor harmed is known as: