QUESTION 4 Select the sets of numbers that are precise.
O 12.1, 35.3, 22.7, 9.4
O 8.01, 7.98, 8.03, 7.97
1.25 x 105.1.23 x 105, 1.20 x 105, 1.26 x105
6.20 x 10-2, 6.21 x 10-3, 6.21 x 10-1,6.20 x 10-4
O 50, 51, 49, 50
QUESTION 5
What is the term for the chemical and physical components of an ecosystem that are
Biotic factors

This drawing shows a human body system. what is the primary function of this body system?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

What are the major types of a chemical compound