This soil sample is the LEAST porous?
True or false

There are other types of soil that can be more crumbly, but this is not the least. Because porous means something is full of tiny holes or openings, you can see that this is the right word to match it with! The least crumbly, or porous would only have a little crack. Good luck, and I hope this helped!

Also

Clayey soil is the least porous.

Clayey soil is the least porous soil as the spaces between the molecules of the soil is less and water cannot pass through them.

b would be the right answer

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.