A few changes are given as follows:
(i) Spinning of top
(ii) Occurrence of day and night
(iii) Formation of curd from milk
(iv) Curdling of milk by adding lemon juice
(v) Digestion of food
(vi) Burning of paper
Which of the following represents the correct classification of these changes?
A(i), (iv) and (vi) are physical irreversible changes while (ii), (iii), (iv) and (v) are chemical changes.
B(i), (iv) and (vi) are fast changes while (ii), (iii) and (v) are slow changes.
C(ii), (iv), (v) and (vi) are desirable changes while (i) and (iii) are undesirable changes.
DNone of these
Study the given flow chart carefully.
Cotton and silk are represented by the letters ______ and ______ respectively.
A P, Q
B Q, R
C Q, S
D R, S
R is animal. Natural fibre which we don't get from plant and animal is silk, i.e from insect, which means S is insect.
Which of the following statements is/are correct?
I. The excretory system in humans consist of a pair of kidneys, ureter, urinary bladder, a pair of urethras and urinary opening.
II. In lower animals such as Hydra waste product is excreted by the process of diffusion through the body surface.
III. The urine passes from the kidneys through urethra into urinary bladder.
IV. Urine consists of water, urea and other waste products and urea is breakdown product of proteins.
AI and IV
BII and IV
CII and III
DI and III
i even do think that the 1st option is correct
The different steps of agricultural practices are given below randomly.
|(i) Irrigation||(ii) Ploughing|
|(iii) Weeding||(iv) Levelling|
|(v) Harvesting||(vi) Fertilisers|
|(vii) Sowing||(viii) Crop protection|
|(ix) Storing seeds|
Which of the following represents the correct sequence of these practices?
A (ii) – (iv) – (vii) – (i) – (vi) – (iii) – (viii) – (v) – (ix)
B (iv) – (ii) – (vii) – (i) – (vi) – (iii) – (viii) – (v) – (ix)
C (ii) – (vii) – (iv) – (iii) – (i) – (v) – (vi) – (viii) – (ix)
D (iv) – (vii) – (i) – (ii) – (iii) – (viii) – (ix) – (v) – (vi)
i think correct answer is B not A because levelling is done before ploughing.
Read the given paragraph with few blanks and select the option that correctly fills up any three of these blanks.
Human adults have P types of teeth in their dentition. These are Q , R , S and molars. Q helps in cutting or biting food. There are T Q in each jaw. R teeth are absent in milk teeth set but there are U such teeth in permanent teeth set. S are four in number and helps in V food.
A P-8, R-Premolars, V-Grinding
B Q-Incisors, T-4, U-8
C S-Canines, T-8, U-4
D P-8, S-Premolars, V-Tearing
Ans 2: (Master Answer)
Human adults have 4(P) types of teeth in their dentition. These are Incisors(Q), Premolars(R), Canines(S) and molars. Incisors(Q) helps in cutting or biting food. There are 4(T) Incisors(Q) in each jaw. Premolars(R) teeth are absent in milk teeth set but there are 8(U) such teeth in permanent teeth set. Canines(S) are four in number and helps in Tearing(V) food.
Parts near equator have _________ marked seasons because _________.
A No, they face the Sun for six months continuously
B Clearly, they face the Sun for six months continuously
C No, they retain at almost same angle to the Sun throughout the year
D Clearly, they retain at almost same angle to the Sun throughout the year
Refer to the given flow chart and select the correct option.
Starting from the first letter, strike out every alternate letter to get the name of a food cooking method and select the correct option.
i could not follow the answer,please explain.