Base your answers to questions 48 through 50 on the rock columns below and on your knowledge of earth
science. the rock columns represent four widely separated locations, w, x, y, and z. numbers 1, 2, 3, and 4
represent fossils. the rock layers have not been overturned.

which rock layer formed from the deposition of land-derived sediments that had a uniform particle size of
about 0.01 cm in diameter?
(1) brown siltstone
(2) black shale
(3) gray conglomerate
(4) red sandstone

The european union was formally established in

If you could drill a hole straight to the center of the earth, and keep track of what the hole is going through, youwould find: a) you would go through one sort of material, and then a different, denser material, and then a still-different, still-denser material, because the planet is made of concentric layers, sort of like an onion.b) you would go through one sort of material all the way to the center, because the planet is all mixed up.c) if your hole started at the north pole, you would go through different layers of different materials, but ifyour hole started at the equator, you would go through one sort of material all the way to the center.d) if your hole started at the equator, you would go through different layers of different materials, but if yourhole started at the north pole, you would go through one sort of material all the way to the center.e) you would strike diet pepsi when you got to the center.

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.