In a nutshell, a chemical change produces a new substance, while a physical change does not. A material may change shapes or forms while undergoing a physical change, but no chemical reactions occur and no new compounds are produced. And for an explanation on how to see the difference Look for an indication that a chemical change occurred. Chemical reactions release or absorb heat or other energy or may produce a gas, odor, color or sound. If you don't see any of these indications, a physical change likely occurred. Be aware a physical change may produce a dramatic change in the appearance of a substance. This doesn't mean a chemical reaction occurred.
Answer: Sense Of Humor. Good sense of humor is immensely attractive. End of …
Self-confidence. Confidence makes you shine in all fields of your life, but …
Kindness. Who wants to be around mean or rude people? Imagine going on a …
Passion. As the popular internet meme says, “People are prettiest when they …
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Answer:agrarian society- dependent on agriculture
Modern society-dependent on manufacturing sector for income
Hunter-gather society-dependent on wild plants and animals for their sustenance
Explanation:
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B. club mosses, horsetails, and ferns.
Answer:
What was the first hominid ancestor?
The first early hominid from Africa, the Taung child, as it was known, was a juvenile member of Australopithecus africanus, a species that lived one million to two million years ago, though at the time skeptical scientists said the chimpanzee-size braincase was too small for a hominid.
