Answer:
divergent boundary on land
Explanation:
Divergent boundary involves the crustal spreading of two tectonic plates. Divergent boundary is the separation or rifting apart of two plates. Divergent boundary can occur between oceanic plates or continental plates.
Divergent boundary between oceanic plates , the convection currents lift the lithosphere producing a mid oceanic ridge. Extensional forces spreads the lithospheric plate apart causing an in flow of magma from the interior of the earth. The magmatic materials travels through fissure and oceanic ridges to the surface of the ocean floor. The volcanic material/magma later solidifies to form new oceanic crust with the youngest rock closest to the mid oceanic ridge.
Divergent boundary between continental plates , the convection current usually pull the continental plates upward due to the thickness of the continental plates. The continental plates are pulled thin by the extensional forces resulting to fracture. The fracture result into a rift shaped structure. Rift valleys are formed which is a lowland region. The two parts of the continents(lands) that are separated are likely to develop fault on both sides of the rifts. The fractured area along the rift valley is a region prone to earthquakes.
Rift valley are structures found in divergent boundary between continents(land) and are region of earthquakes activities because of movements and fracturing occurrence. The East African rift is an example of this kind of plates boundary.
Answer:
Transform Boundaries — Grinding Plates
This kind of boundary results in a fault — a crack or fracture in the earth's crust that is associated with this movement.
Explanation:
Answer:
choosing one cereal over another and losing the chance to buy the other
Explanation:
Opportunity cost is the choice sacrificed for another alternative.
Our wants according to economics are unlimited. The resources to meet these unlimited wants are also scare. Production is limited by availability of resources.
Due to limited resources, we have to choose more important needs over the other. Often times, a scale of preference is drawn for our wants.
The cost of choosing one particular commodity over another is called the opportunity cost.
Answer:
The correct answer is A. A disadvantage of shade-grown coffee beans is that shade-grown coffee trees produce fewer coffee beans per plant.
Explanation:
The expression “shade coffee” designates coffee produced on trees cultivated under a canopy rather than in vast fields exposed to the sun, which in turn is a very productive technique but requires, for the maintenance of a high yield, the irrigation and spreading of large quantities of polluting pesticides and fertilizers. Rather, shade trees protect coffee trees from rain and sunlight, help preserve soil quality, reduce the amount of weed control needed, and provide habitat for a diverse range of wildlife. The organic matter produced by these trees also provides natural mulch which reduces the need for chemical fertilizers, prevents erosion and provides important nutrients to the soil. But the negative part of this type of coffee growing is that it produces a lesser amout of coffe beans.
