6. What is one way in which scientists study dark matter?
O A They study how light bends around a galaxy or
galaxy cluster.
OB They study shadows that are cast onto a galaxy
or galaxy cluster.
OC They study changes in the number of galaxies in
a galaxy cluster.
OD They study how the brightness within a galaxy or
galaxy cluster changes.

Drag the tiles to the boxes to form correct pairs. match each excerpt to the type of characterization it uses.

How did the language of the gettysburg address differ from the language in the secondary source about this speech?

What type of writing is demonstrated in this excerpt by general philip henry sheridan? at once i set about preparing for the examination which precedes admission to the military academy, studying zealously under the direction of mr. william clark; my old teachers, mcnanly and thorn, having disappeared from somerset and sought new fields of usefulness. the intervening months passed rapidly away, and i fear that i did not make much progress, yet i thought i should be able to pass the preliminary examination. that which was to follow worried me more and gave me many sleepless nights; but these would have been less in number, i fully believe, had it not been for one specification of my, outfit which the circular that accompanied my appointment demanded. this requirement was a pair of "monroe shoes." now, out in ohio, what "monroe shoes" were was a mystery—not a shoemaker in my section having so much as an inkling of the construction of the perplexing things, until finally my eldest brother brought an idea of them from baltimore, when it was found that they were a familiar pattern under another name. a. research essay b. persuasive essay c. biography d. memoir