Why Was the Alaskan Pipeline Built Above Ground and Insulated

question 70

Multiple Choice

Why was the Alaskan pipeline built above ground and insulated?

• A)to protect the pipeline from damage by caribou migration
• B)to protect the pipeline from damage by volcanism
• C)to protect the pipeline from damage due to thawing ground and to keep the oil fluid
• D)to protect against damage from roots of large trees uprooted in windstorms

---

Definitions:

Hormesis

A biological phenomenon where a low dose of a harmful substance has a beneficial effect, while a high dose is toxic.

Endocrine System

A network of glands that produce and release hormones to regulate various bodily functions.

Hormones

Chemical messengers produced by the endocrine glands that regulate various bodily functions.

AIDS

Acquired Immune Deficiency Syndrome, a critical illness resulting from the human immunodeficiency virus (HIV) that extensively weakens the immune system.