The ________ River System Is Vulnerable to Water Withdrawal and Pollution

question 47

Multiple Choice

The ________ river system is vulnerable to water withdrawal and pollution arising from oil sands operations.

• A) Athabasca
• B) Churchill
• C) Mackenzie
• D) Nahannie

---

Definitions:

Probable Ancestors

The most likely predecessors or early forms of living organisms from which others have descended.

Algae

Photosynthetic, predominantly aquatic organisms, ranging from single-celled forms to giant kelps, that are not classified as plants, animals, or fungi.

Spore-Forming Capsules

Structures produced by certain bacteria and plants that encase and protect spores until they're released into favorable conditions for growth.

Classified

The process of organizing or categorizing entities into groups based on shared characteristics or criteria.