The seeds and leaves of the fennel plant both have a licorice flavor, although the flavor of fennel is milder and somewhat sweeter than anise. Fennel seeds are actually a spice, although the leaves, stalks and roots of the plant are known as a herb.
Definition of air mass. : a body of air extending hundreds or thousands of miles horizontally and sometimes as high as the stratosphere and maintaining as it travels nearly uniform conditions of temperature and humidity at any given level.
a measure of the force of air pressing down on the Earth's surface. Air has mass , density, and pressure. Depends on the density of the air.- measured in millibars or inches. air. presses evenly in all directions. Denser ___ has more mass (more pressure).