Which solution would make phenolphthalein turn pink? a mg(oh)2 b hcl c mgcl2 d h2s

Which one of the following gases is not an important component of soil?

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.

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces