When j. k. rowling was 21, what is the only thing that she thought she wanted to do in life?

J. K. Rowling has always wanted to write and be a successful writer, even though her parents didn't believe in her initially. They thought that writing couldn't support her in life and were thus against her wishes. They wanted her to study languages, which she did in the beginning (she enrolled in Modern Languages, however, later transferred to Classical Languages), but soon realized that her passion for writing never diminished, which is a good thing because we wouldn't have the Harry Potter series today otherwise.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.

That is true , instead try to have a sit down talk with them