How do plants obtain nitrogen?
a-they remove it from the air.
b-they absorb it through their roots.
c-they fix it in their leaves.
d-they produce it in their stems.

B. They absorb it through their roots

Explanation:

When nitrogen is released in the air plants cannot remove it through the air directly. They have to absorb it through another part of the plant. With that being said they have to absorb it through there roots.

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.