Answer:
B direct Plant
Explanation:
Direct plant sources are plants or plant products that are directly used by humans
Answer:
When Carbon 14 decays by emitting a beta particle, it becomes nitrogen-14.
Explanation:
Unconformity. <span>An unconformity is a buried erosional or non-depositional surface separating two </span>rock<span> masses or strata of different ages, indicating that sediment deposition was not continuous.</span>
the answer is the second one how appearance of an organism and its structure