Elements are a one of a class of substances that cannot be seperwted into simpler substances by chemicalk means.
Compounds is a substance formed when two or more chemical elements are chemically bonded together.
Relation: When two elements or more are formed chemically together its called a compound without elements there won't be compounds and without compounds there won't be elements.
Answer:
Option A (0.043 g) is the correct answer.
Explanation:
Given:
= 43 mg
As we know,
then,
⇒ 
Thus, the above is the correct alternative.
Answer:
1. Stop Cutting down Trees
2. Control Population
3. Less use of Fossil Fuels
Explanation:
your welcome :)
Answer:
Frequency = Velocity / Wavelength
or
f = v / λ
