The mouth is the beginning of the digestive tract; and, in fact, digestive starts here when taking the first bite of food
Answer:
troposphere
Explanation:
The troposphere is the temperature zone of the atmosphere where most precipitation occurs. It has a normal temperature of 0 degrees Celsius. This layer is where the majority of weather events take place. It is 10–15 kilometers thick above the Earth's surface.
Explanation:
Microscopy is the science of investigating small objects and structures using a microscope. ... Microscopic means being invisible to the eye unless aided by a microscope.