1251: In a bisexual flower, if androecium and gynaecium mature at different times, the phenomenon is know as
(a) Dichogamy
(b) Herkogamy
(c) Heterogamy
(d) Monogamy
1252: What is the difference between asteroids and comets?
1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.
Which of the statements given above is / are correct?
(a) 1 and 2 only
(b) 1 and 3 only
(c) 3 only
(d) 1, 2 and 3
1253: Which one of the following ports shown on the rough outline map of India is a riverine port ?
(a) 1
(b) 2
(c) 3
(d) 4
1254: As per India's National Population Policy, 2000, by which one of the following years is it our longterm objective to achieve population stabilization ?
(a) 2025
(b) 2055
(c) 2045
(d) 2035
1255: Why did Buddhism start declining in India in the early medieval times ?
1. Buddha was by that time considered as one of the incarnations of Vishnu and thus became a part of Vaishnavism.
2. The invading tribes from Central Asia till the time of last Gupta king adopted Hinduism and persecuted Buddhists.
3. The Kings of Gupta dynasty were strongly opposed to Buddhism.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3