Which of the following is a base?
a baking soda
b lemon juice
c vinegar
d stomach acid

How does an angiosperm prevent self pollination

Which of these is not a nucleotide base found in dna?

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land