The Use of Chemical Nitrogen Fertilizer Can Be Reduced by the Use

question 35

Multiple Choice

The use of chemical nitrogen fertilizer can be reduced by the use of all of the following except one.Choose the exception.

• A)organic fertilizers
• B)free-living nitrogen fixing bacteria
• C)improved varieties of plants
• D)genetically engineering the nitrogen fixation process
• E)controlling lightning strikes

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Definitions:

Semicircular Canals

Structures within the inner ear vital for maintaining balance and equilibrium, detecting rotational movements of the head.

Utricle

A part of the inner ear that is involved in sensing linear accelerations and head-positions.

Vestibule

An entrance hall inside a building which leads to various rooms or spaces, or in anatomy, a space or cavity at the entrance of a canal, notably within the ear or nose.

Nasopharynx

The upper part of the pharynx, connecting the nasal cavity above the soft palate to the oropharynx.