Human Activities

question 22

Multiple Choice

Human activities

• A) rarely affect nutrient cycles.
• B) can alter nutrient cycles on a global scale.
• C) tend to cause only local changes in nutrient cycles.
• D) generally improve nutrient cycling in ecosystems.

---

Definitions:

Unipolar Depression

A mood disorder characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities, without manic episodes.

Behavioral Activation

A therapeutic approach that seeks to engage patients in activities that will enhance their interactions with their environment or create positive reinforcement.

Depressive Behavior

Actions or conduct that indicate depression, such as withdrawal from social interaction, loss of interest in activities, and persistent sadness.

Positive Activities

Actions or engagements that contribute to well-being, happiness, or constructive outcomes.