It contains 72 percent hydrogen, 26 percent helium and other elements like oxygen, carbon, neon, nitrogen, magnesium, iron and silicon.
Answer: its B: I, II, III, and IV
Explanation: i took the K12 test
Since fibrous roots grow from the side of monocot plants, the plant roots observed on the corn stalk are fibrous roots.
<h3>What are fibrous roots?</h3>
Fibrous roots are roots of plants which are usually seen on the surafce above ground and which grow from the side of plants.
Monocotyledons such as corn have fibrous roots.
The fibrous roots help to provide support and strength to the plant.
Therefore, the plant roots observed on the corn stalk are fibrous roots.
Learn more about plant roots at: brainly.com/question/15856277
12C,13C,14C
these are all carbon Isotopes