What Is the Most Significant Concern Over the Use of Hydrogen

question 76

Multiple Choice

What is the most significant concern over the use of hydrogen as a fuel source? 

• A) Burning hydrogen releases low amounts of carbon dioxide. 
• B) Excessive hydrogen leaks may deplete ozone. 
• C) Hydrogen gas is difficult to store. 
• D) Hydrogen gas cannot be distributed by a pipeline.

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Definitions:

Informed Consent

A participant’s agreement to participate in research after receiving information about the purposes of the study and the nature of the treatments.

Workplace Stress

The response individuals may have when presented with work demands and pressures that are not matched to their knowledge and abilities, challenging their ability to cope.

Research

The systematic investigation into and study of materials, sources, etc., in order to establish facts and reach new conclusions.

Placebo Effect

A beneficial effect produced by a placebo drug or treatment, which cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient's belief in the treatment.