The Next Question Is Based on the Following Description and Figure

question 27

Multiple Choice

The next question is based on the following description and Figure 29.1, which is the same as Figure 29.10 in the textbook.
Art Questions
Researchers tested nitrogen loss from soil where the moss Polytrichum was growing, and compared it to soil from which Polytrichum had been removed. The data are presented below.

Figure 29.1
-Loss of soil nitrogen via "gaseous emission" was found to be negligible. Rather, most loss of soil nitrogen was due to water erosion of the soil. Which of these hypotheses is least likely to account for the observed results?

• A) If rhizoids had helped stabilize the soil, then less erosion and less loss of nitrogen would occur.
• B) If protonemata had absorbed, and stored, nitrogen from the soil, then they would have reduced loss of nitrogen by erosion.
• C) If the overlying mat of gametophores had slowed the entry of water into the soil, then it would have reduced water's ability to erode the soil and carry away its nitrogen.
• D) If sporophyte stomata had absorbed nitrogen from the soil, then they would have reduced loss of nitrogen by erosion.

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Definitions:

Imports

Goods or services brought into a country from abroad for sale, which can impact the domestic economy and domestic industries.

Current Account Deficits

Occurs when a country's total imports of goods, services, and transfers exceed its total exports, indicating that it is spending more on foreign trade than it is earning.

Trade Surpluses

A condition in international trade where a country exports more goods and services than it imports.

Balance Of Payments Surpluses

A situation where the total amount of money coming into a country from abroad exceeds the total amount of money leaving the country.