Answer:
Animals are important because without them we wouldnt have any food
Explanation:
Answer:
A. Both freezing and melting are physical changes.
Explanation:
Even if you were to freeze water, the molecules are still water molecules, and vise versa with melting it.
Photosynthesis takes carbon dioxide, water and sunshine and turn them into glucose and oxygen
Explanation
Glucose is the principal carbohydrate formed through photosynthesis, Through the process of photosynthesis sunshine, carbon dioxide and water to form glucose and oxygen
Equation for reaction is as follows
CO2+ H2O + light energy → C6H12O6 +O2
C6H12O6 is the glucose
Answer: Electrons
Explanation:The electron itself is small but it takes space as much as an atom by circling around the nucleus.
<span>Mg + O2 > MgO. In reactant side, 2 O atoms and 1 Mg are present. In product side, 1 Mg and O atoms are present. Put 2 in product side to balance O atoms and 2 at Mg in reactant side to balance Mg atoms. Therefore the balanced equation becomes, 2Mg + O2 ----> 2MgO. Hope it helps.</span>