If Earth Did Not Have an Atmosphere, the Sky Would

question 40

Multiple Choice

If Earth did not have an atmosphere, the sky would appear ____ during the day.

• A)white
• B)black
• C)red
• D)blue
• E)violet

---

Definitions:

Major Proteins

Essential, large molecules made up of amino acids that play critical roles in the body's structure, function, and regulation of tissues and organs.

Macrophages

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.

Inflammation

The body's response to injury or infection, marked by redness, warmth, swelling, and pain.

Lymphatic Vessels

Thin-walled vessels structured similar to blood vessels, that carry lymph throughout the body, helping to rid the body of toxins and waste.