Rekha has a small uneven piece of land which she wants to convert into a farm. Suggest the method of irrigation for her farm. (a)Drip irrigation.
(b)Sprinkler irrigation.
(c)Rahat system.
(d)None of these.

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

Which characteristics are typical of a human population in the postindustrial stage?

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction