Which of these is a case of selective breeding?

Question 4 options:

Over time, more milk cows at the diary farm began to produce larger amounts of milk.

A gene was identified that increased milk production. This gene was added to calves in the womb.

The genome of a group of cows was analyzed to identify the gene for milk production.

To increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mothers.

a gene was identified that increased milk production

Explanation:

elements make up everything, and they combine to make compounds.

the answer is c

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.