The first objects to collapse gravitationally after the big bang might have been globular cluster-size galaxy pieces, with masses around 106 solar masses. suppose you merge two of those together, then merge two larger pieces together, and so on, lego-style, until you reach a milky way mass, about 1012 solar masses. how many merger generations would that take, and how many original pieces? (hint: think in powers of 2.)

(75°f − 32) × 5/9 = 23.889°c

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

b. a lightning bug, plug of grass, and a worm