When it is raining or snowing (precipitation), every water molecule has 2 atoms of hydrogen bonded with 1 atom of oxygen (H20). Describe the properties of the molecules
in the lake

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium

Suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 1 s. what is your acceleration?