Osteoporosis is a thinning of the bones that makes them prone to fracture. We often hear of old women who fall and break their hip. More often, their hip breaks causing a fall. What do you think is causing osteoporosis? Is it a lack of collagen or a lack of calcium phosphate? Why?

Athermometer is placed in water in order to measure the water’s temperature. what would cause the liquid in the thermometer to rise?

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary