The main chemical compound cells use for energy is Adenosine Triphosphate (ATP)
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed. Hence, the quantity of mass is "conserved" over time.
Answer:
It absorbs ultraviolet (UV) radiation from the sun.
Explanation:
Excess UV radiation damages DNA, causing malignant skin cancers.
The ozone in the upper atmosphere is beneficial because it absorbs much of this harmful radiation.
A redox reaction be used as a source of electrical energy only when two half-reactions are physically separated. <span>The electrons that are released at the anode flow through the wire, producing an electric current. Galvanic cells therefore transform chemical energy into electrical energy that can then be used to do work.</span>
A and D
Density is mass over volume, if mass decreases or volume increases density decreases
