What Is the Estimated Number of Species on Earth

question 20

Multiple Choice

What is the estimated number of species on Earth? 

• A) about 3 thousand to 100 thousand 
• B) about 3 million to 100 million 
• C) 3 billion to 100 billion 
• D) about 3 trillion to 100 trillion

---

Definitions:

Social Movement

Social movement is a collective effort by a large group of people to bring about or resist social change, driven by common interests, ideologies, or goals.

Inspirations

The process of being mentally stimulated to do or feel something, especially to do something creative.

Theories of Collective Behaviour

Scholarly explanations which explore how groups of people act together in situations not governed by formal rules, often in response to an event or a shared belief.

Mainstream Press

Media outlets, including newspapers, magazines, and broadcasters, that have a wide audience and are considered to represent conventional or prevailing viewpoints.