The correct answer is option B, that is, there is an equal number of atoms on both sides.
According to the law of conservation of mass, matter can neither be created nor be destroyed in the chemical reactions. In every chemical reaction, the similar mass of matter must end up in the products as initiated in the reactants.
The balanced chemical equations demonstrate that mass is conserved in chemical reactions. At the time of any chemical reaction, no particles are destroyed or created, that is, the atoms are basically arranged from the reactants to the products.
A. the runner's muscles have accumulated lactic acid.. I think. 99% sure
The water cycle is a parameter of the hydrosphere that always remains constant. Life on Earth and its sustenance is possible because of this cycle. The continuous evaporation, condensation, and precipitation of water provides for the many processes involved in Earth's natural surroundings. Without the water cycle, life would cease to exist.
Plants are photosynthetic. So, they prepare their own food by using raw materials from atmosphere like CO2, H2O and sun’s energy. CO2 is the carbon source for the synthesis of glucose through array of enzyme catalysed biochemical reactions taking place in chloroplast of plant cell.
Animals are heterotrophic in nutrition. So, they get energy; i.e. glucose from the food they eat. It depends on what is their food source. For example, herbivorous animals eat variety of plants, starch and cellulose of which become glucose source. Carnivorous animals eat other animals, whose stored glycogen or fat becomes energy source for them.