Which of the following accurately describes semiconductor diodes? a. unlike junction diodes, point-contact diodes are enclosed in a suitable casing and have terminals for connecting them to a circuit. b. unlike point-contact diodes, junction diodes utilize a point of metal wire in contact with a single wafer of p-type or n-type material. c. junction diodes are preferred over point-contact diodes for most purposes. d. point-contact diodes are more likely to be used as rectifiers than junction diodes.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic