Before Ice Can Form on a Lake,all the Water in the Lake

question 92

Multiple Choice

Before ice can form on a lake,all the water in the lake must be cooled to

• A)0°C.
• B)4°C.
• C)a value slightly below 0°C.

---

Definitions:

Serum Separator

A device or material in blood collection tubes that isolates serum from blood cells after centrifugation, used for various medical tests.

Formed Elements

Components of blood that include red blood cells, white blood cells, and platelets.

Butterfly Collection System

A type of IV needle system used for drawing blood that has a thin, needle-like tube connected to a winged end, making the insertion easier and minimizing discomfort for the patient.

Gauge Needle

A tool used in medical injections and samplings, with the gauge number indicating the needle’s thickness; a higher number represents a thinner needle.