You didn't put any answers, but probably environmental groups.
For the answer to the question above, I believe the answer is that the bones get or have a greater risk for bone fracture <span>if calcium is not replaced in bone tissue. The bones could become more brittle. For women, they can suffer from Osteoporosis. </span>
Your answer is D. Nucleotide
Answer:
by convection because convection is the transfer of heat due to indensity
The correct option is C.
In chemistry, a radical is defined as an atom, ion or molecule that possess an unpaired valence electron. Generally, radicals are highly reactive chemically. Examples of radicals are hydroxyl, hypochlorite, nitrate, carbonate, oxalate, permanganate, etc. Free radicals combine with one another or with single atoms to produce neutral substances. In the question given above, the two compounds given in option C have the same type of radical, which is hydroxyl radical.