3656: A girl is swinging on a swing in sitting position. When the same girl stands up, the period of swing will
(a) be shorter
(b) be longer
(c) depend on the height of the girl
(d) not change
3657: The Rowlatt Act aimed at
(a) compulsory economic support to war efforts
(b) imprisonment without trial and summary procedures for trial
(c) suppression of the Khilafat Movement
(d) imposition of restrictions on freedom of the press
3658: Hydrogen fuel cell vehicles produce one of the following as "exhaust"
(A) NH3
(B) H2O2
(C) CH4
(D) H2O
3659: Fertility of soil can be improved by:
(a) Removing dead earthworms
(b) Adding dead earthworms
(c) Adding living earthworms
(d) Removing living earthworms and adding dead earthworms
3660: European Stability Mechanism, sometimes seen in the news, is an
(a) agency created by EU to deal with the impact of millions of refugees arriving from Middle East
(b) agency of EU that provides financial assistance to eurozone countries
(c) agency of EU to deal with all the bilateral and multilateral agreements on trade
(d) agency of EU to deal with the conflicts arising among the member countries