1 Age test: A child must be under a certain age depending on the particular tax benefit. 2  For the dependency exemption, the child must be younger than 19 at the end of the year. 3  However, a youth who was a student at the end of the year can be claimed as long as he or she is younger than 24.
Metamorphic rocks form when high temperatures and pressure act on a rock to alter its physical and chemical properties (metamorphism means 'to change form'). These conditions often stretch, twist and fold the rock as it cools. In metamorphic rocks some or all of the minerals in the original rock are replaced, atom by atom, to form new minerals. Types of metamorphic rocks include gneiss, quartzite, marble, schist, soapstone, and phyllite.
11. A regional metamorphic rock with coarse inter-locking grains generally formed under conditions of relatively high pressures and temperatures. 12. A metamorphic rock formed under conditions of high pressure and relatively low temperatures, often contains the minerals glaucophane and kyanite. metamorphic schist containing chlorite and epidote and are formed by low-temperature, low-pressure metamorphism. 14. metamorphism occurs at high-temperatures and pressures, by the crushing and shearing of rock during tectonic movements and resulting in the formation of powdered rock.