The a Horizon Is Usually ________ Underlying Layers Because ________

question 132

Multiple Choice

The A horizon is usually ________ underlying layers because ________.

• A)darker than it is made of dark-coloured,mafic minerals
• B)darker than it contains humus
• C)lighter than it is made of light-coloured,felsic minerals
• D)lighter than it contains little humus,but a considerable amount of mineral particles

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Definitions:

Comparative Advantage

The ability of an individual or economy to produce goods or services at a lower opportunity cost than competitors, leading to more efficient trade and production.

Microwave Oven

An electric oven that uses microwaves to heat or cook food by inducing polar molecules in the food to rotate and produce thermal energy.

Balance of Trade Surplus

A condition where a country's exports exceed its imports, resulting in a positive balance of trade.

Net Exports

The difference between a country's total value of exports and its total value of imports. If exports exceed imports, net exports are positive; if imports exceed exports, net exports are negative.