In economies, an exchange rate deserbes: A the amount of currency available in fixed exchanges
B the total value of a country's imports and exporte.
C. how quiekly prices are rising in an international market
D how much one eurreney is worth compared to another

B. the total value of a country's imports and exports .

Explanation: When exchange rates change, the prices of imported goods will change in value, including domestic products that rely on imported parts and raw materials. Exchange rates also impact investment performance, interest rates and inflation - and can even extend to influence the job market and real estate sector.

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the correct answer is 2.

a slump in geology means a mass movement process of slope failure. a mass of rock or unconsolidated material drops along a slip surface. in other words, rock layers move a short distance down the slope. the slump block is an intact block (2), without any landslide material.

in this image, 1 is the surface of rapture (scarp), 2 the slump block, 3 main scarp (crown), 4 base of rapture with debris flow.

slumps are caused by clear cutting on unstable soils and the sagging of earth, in coastal areas they are due to wave infiltration.

answer; earthquake;