Determine which situation is an example of intraspecific competition. A. Squirrels and Blue Jays make a home in the same tree.
B. Two hawks share a hunting territory
C. A community of organisms fights over water in a desert oasis.
D. Minnows are a food source for both frogs and larger fish.

B, they're of the same species :)

Explanation:

Intraspecific competition is an interaction in population ecology, whereby members of the same species compete for limited resources. This leads to a reduction in fitness for both individuals, but the most fit individual survives and is able to reproduce.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds