The product of a non-zero whole number and its successor
is always divisible by
(A) 2 (B) 3 (C) 4 (D) 5
Which of the following numbers in Roman Numerals is incorrect?
(A) LXII (B) XCI (C) LC (D) XLIV
3 × 10000 + 0 × 1000 + 8 × 100 + 0 × 10 + 7 × 1 is same as
(A) 30087 (B) 30807 (C) 3807 (D) 3087
Answer the following questions in one or two words or sentences:
(a) Why should we prefer to use paper bags rather than
polythene bags?
(b) Who, out of the following should properly dispose of the garbage –
father, mother, elder brother, younger sister?
(c) Which one out of beetles, roundworm and earthworm are used for
vermicomposting and why?
What happens when
(a) Cooking medium is made to flow down a drain.
(b) Insecticides, motor oil, paints are poured down the drain.
(c) Tea leaves, cotton swabs and old soft toys are thrown into the drain.
Recently, a ban on plastic bags has been imposed in many places? Is the
ban justified? Give reasons in three sentences
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