I am sure it is a.12150sn and 11950sn because isotopes are the same atoms but different number of protons
Due to energy being a reactant instead of a product, the process is endothermic. The system must absorb a quantity of energy before it can react, so it must be an endothermic system.
The process in which energy is converted from solar to chemical and then one form of chemical to another form is photosynthesis. It is a process carried out by the plant to make food. The leaves of the plant take in sunlight, water from the soil and carbon dioxide from the air to produce glucose and oxygen.
A warm front is also defined as the transition zone where a warmer air mass is replacing a cooler air mass
Dew point: The point at which air saturated with water vapor produces condensation which forms dew.