Answer:
Viscosity of Magmas
Viscosity is the resistance to flow (opposite of fluidity). Viscosity depends on primarily on the composition of the magma, and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with increasing SiO2 concentration in the magma).
Explanation:
A. Help take care of those in need, such as the poor.
This is a tenet of social programs and socialism.
Answer:
1. Groove describes the gap in the outer crust of rubber in a tire.
Advantage: It helps water and air to be expelled from beneath the tire.
Disadvantage: Regrooving is dangerous as it makes more grooves to worn out tires which may dysfunction during driving.
2. Cuff is tire scalloping in which treads move from high to low.
Advantage : It reduces fuel consumption due to less friction and resistance.
Disadvantage: There can be lack of contact of tire with the rod surface and therefore bouncy feel can be irritating for the travelers.
3. lugs: Lug nuts are fasteners which attach a tire from the automobile.
Advantages: Lug nut patterns helps maintain good braking power.
Disadvantages: There can be tendency of high noise when car is driven at high speed.
Answer:
(opportunity cost) A comparative advantage is the ability of a country to produce a particular good or service at a lower opportunity cost than another country.
Explanation:
The ability of producing a product or a service at a reduced cost of production than that of the competitors is referred to be an absolute advantage. The ability of producing a product or a service at low opportunity cost than that of the competitors is referred to be Comparative advantage. When a product is produced in an efficient manner than a competitor which is at a reduced it is an absolute advantage. Comparative advantage means that, instead of producing some other goods at some costs, a particular good can be produced at a lower cost. This is also termed as an opportunity cost.
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