Q1.p2-sc1.(24163--item--188058001054)Since the start of the space age more and more littering has occurred in orbits near Earth often because the intentional discarding of lens caps packing material f
Q1.p1-sc77.(28689--item--188058003708)Scientists have found signs that moving water changed the chemical makeup of the surface of Mars in recent eras therefore concluding that its crust is harboring u
Q1.p1-sc94.(29615--item--188058003960)The decline of the mountain yellow-legged frog in the high reaches of the Sierra Nevada has be severe enough for the United States Fish and Wildlife Service q
Q1.p2-sc46.(26958--item--188058003387)Genetic engineering sometimes entails plant or animal genes getting spliced into other species DNA either to improve crop yields or for warding off insects or dis
Q1.p1-sc60.(27763--item--188058003346)Mideast immigrants rates of entrepreneurship exceed virtually every other immigrant group in the increasingly diverse United States economy.(A) Mideast immigrants
Q1.p1-sc47.(27021--item--188058003068)1998 saw several new ventures promoting online distance learning both at the college and graduate level but also faculty members in large numbers began questionin
Q1.p2-sc33.(26216--item--188058003085)Like the great navigators who first sailed around the Earth to gather information about its size and curvature of its surface new observations have been made by a
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Q1p2-sc17(25335-!-item-!-188;#058&002335)The success of the program to eradicate smallpox has stimulated experts to pursue what they had not previously considered possible--better control, if not er
Q1p2-sc1(24163-!-item-!-188;#058&001054)Since the start of the space age, more and more littering has occurred in orbits near Earth, often because the intentional discarding of lens caps, packing ma
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