The answer would be thermal insulator, hope it works goodluck
Answer:
<h2>The Infusion Nurses Society (INS) classifies a solution as isotonic if its tonicity falls within (or near) the normal range for blood serum-between 280 and 300 mOsm/liter. A hypotonic solution has an osmolarity less than 280 mOsm/liter, and a hypertonic solution has an osmolarity greater than 300 mOsm/liter.</h2>
<h2>Hopefully u will satisfy with my answer..!!</h2>
<h2>Have a nice day ahead dear..!!</h2>
First figure has the lowest pitch
The answer would have to be A) because cold air is dense so it is able to quickly plow a warm air mass ahead of it.
