Environmental Science - Study Mode

[#586] What is "temporary threshold shift"?
Correct Answer

(A) Hearing loss due to excessive noise

Explanation

Solution: A temporary threshold shift is a temporary shift in the auditory threshold. It may occur suddenly after exposure to a high level of noise, a situation in which most people experience reduced hearing. A temporary threshold shift results in temporary hearing loss.

[#587] In an average year, more people die from this than from any other natural disaster.
Correct Answer

(D) Flash floods and flooding

Explanation

Solution: In an average year, more people die from flash floods and flooding than from any other natural disaster.

[#588] All are physical pollutants except
Correct Answer

(D) soot

Explanation

Solution: All are physical pollutants except soot.

[#589] Superbugs are
Correct Answer

(B) Bacteria

Explanation

Solution: Superbugs are strains of bacteria that are resistant to several types of antibiotics. Each year these drug-resistant bacteria infect more than 2 million people nationwide and kill at least 23,000, according to the U.S. Centers for Disease Control and Prevention (CDC).

[#590] A small quantity of __________ material can produce an enormous amount of energy
Correct Answer

(C) Radioactive

Explanation

Solution: A small quantity of radioactive material can produce an enormous amount of energy.