Responses extinguish fastest when they are learned through which type of reinforcement schedule? Fixed-interval
Variable-ratio
Variable-interval
Continuous
Fixed ratio

1) earth's crust is made up of relatively rigid plates that ride atop earth's hot, semiliquid mantle. (2) the plates are called tectonic because they're in constant motion. (3) they can move because earth's mantle is a very hot and semiliquid fluid called magma. (4) volcanoes are a result of magma rising up or erupting through a plate, particularly where plate boundaries are moving against each other. (5) also, when plates slide against each other, causing friction along adjacent plate boundaries, earthquakes frequently occur. (6) therefore, we often find volcanoes and earthquakes along plate boundaries. (7) plates may also collide. (8) when that happens, mountain ranges are formed. (9) for example, the collision of the plate carrying the indian subcontinent created the himalayan mountains when it collided with the asian plate. 2. which sentence in this passage introduces a new topic that might begin a new paragraph? a. sentence 5 b. sentence 4 c. sentence 7 d. sentence 6

Atotal of 980 students were asked what their favorite holiday was and 525 students said christmas what percent of students said christmas was their favorite holiday

Typically, passing a dual enrollment course in english would earn a student: a. weighted credit on college transcripts. b. both high school and college english credit. c. high school social studies credit. d. credit for two high school english classes