Ned wants to demonstrate that global warming is indeed a real occurrence within our world. Ned's speech will be addressing a: a. question of policy b. question of fact c. question of theory

b. question of fact

Explanation:

A policy represents a proposed principle of action by an organization, individual or government.

A fact represents a process or an event that has been proven to be always true.

A theory is a hypothesis that has been proven by several independent individual or researcher.

Global warming means the average increase in global temperature as a result of absorption of more radiation by greenhouse gases. The phenomenon has been established and proven as a fact.

Hence, Ned will be addressing a question of fact rather than a question of policy or theory.

The correct option is b.