Deposits of Soil That Are Rich in Silica Contain Microscopic

question 208

Multiple Choice

Deposits of soil that are rich in silica contain microscopic shells with spines and are often used as insecticides, since the pointed spines perforate tracheae of insects.These shells are most likely to be those of

• A) diatoms.
• B) foraminiferans.
• C) corals.
• D) radiolarians.
• E) alveolates.

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Definitions:

FMVSS 121

A regulation set forth by the Federal Motor Vehicle Safety Standards concerning air brake systems in heavy vehicles, ensuring safety and performance.

Legislation

Laws and regulations enacted by a governmental body to regulate, authorize, sanction, grant, declare, or restrict.

Truck Air Brake

A braking system utilized in heavy vehicles, like trucks, where compressed air is used to apply pressure to the brake pad to stop the vehicle.

Dual-Circuit Foot Valve

A brake valve used in heavy vehicles that controls two separate air brake systems from a single pedal.