1.	The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
		A.	2.2 × 10-5
		B.	0.22 × 10-4
		C.	2.2 × 105
		D.	2.2 × 10
		Hint
	2.	Express 2.629 × 107 in standard form.
		A.	0.0000002629	B.	2,629,000
		C.	26,290,000	D.	2,629
		Hint
	3.	Express 35,329 in scientific notation.
		A.	3.5329 × 105	B.	35.329 × 103
		C.	3.5329 × 104	D.	3.5329 × 10-4
		Hint
	4.	Express 1,000,000 in scientific notation.
		A.	1 × 106	B.	1 × 10-6
		C.	1 × 107	D.	1 × 105
		Hint
	5.	Express 0.00186 in scientific notation.
		A.	1.86 × 10-3	B.	1.86 × 103
		C.	1.86 × 10-4	D.	1.86 × 10-5
		Hint