Which trace fossils are created when a creature leaves an impression in the sand, and then the impression is filled with hardened sediment?
a. coprolites
b. tracks and trails
c. molds and casts
d. burrows and borings

Nrectangle pqrs, pq = 18, ps = 14, and pr = 22.8. diagonals pr¯¯¯¯¯ and qs¯¯¯¯¯ intersect at point t. what is the length of tq¯¯¯¯¯? a.7b.9c.11.4d.22.8

In the 1400s, portugal’s economy was based on a. industry b. exports c. finance d. trade

Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.