________ Is the Air Mass Which Is the Principal Source

question 102

Short Answer

________ is the air mass which is the principal source of moisture for the eastern United States.

---

Definitions:

Nourishment

The substances necessary for growth, health, and good condition, typically obtained from food.

Blastocyst

An early stage of embryonic development characterized by a sphere of cells surrounding a fluid-filled cavity, shortly before implantation in the uterus.

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby and removing waste products from the baby's blood.

Umbilical Cord

A flexible cord-like structure containing blood vessels that connects a fetus in the womb to its mother's placenta, providing oxygen and nutrients.