Describe How We Know That the Expansion Rate of the Universe

question 44

Essay

Describe how we know that the expansion rate of the universe is currently accelerating.

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Definitions:

Infectious Disease

Diseases caused by pathogenic microorganisms such as bacteria, viruses, parasites, or fungi; these diseases can be spread, directly or indirectly, from one person to another.

Pneumonia

An infectious disease affecting the lungs, causing inflammation of the air sacs which can fill with fluid or pus.

Negative-pressure Room

A special hospital room designed to prevent the spread of infections by keeping the air pressure lower than the surrounding areas to contain airborne particles.

Upper Airways

The portion of the respiratory system that includes the nose, nasal passages, pharynx, and larynx, responsible for the intake and preliminary warming and filtering of air.