Answer:
Tree ring patterns have recently been proven to match up with historical drought records and have revealed everything from changing indigenous forest management in the Central Amazon to the climate patterns that caused ancient Rome to rise and fall.
Explanation:
<span>A chemical property of matter describes its ability to change into different substances..</span>
The frequency of any repeating event is the number of times it happens in some specified period of time.
The frequency of a wave is the number of cycles, wiggles, compressions etc. that occur in a given time, usually one second.
Answer : Hypothetical situations are situations that we imagine. There are specific English grammar structures, phrases and forms to express hypothetical situations. Here are some examples of some hypothetical situations using a wide variety of forms.
Step by step explanation :
Everything with 1 symbol = Element
Everything with multiple symbols = Compound
Elements are the smallest particles (if we go further things start to get weird). Compounds are ALWAYS made up from elements.