lack of conservation
Lack of conservation is found in the preoperational stage as posited by philospher jean piaget. It is evidenced by lack of differentiating whole and fractional numbers . It often develop in the concrete preoperational stage of 2-7. children can not tell that something remains the same with changes in shape,design, or adjustment of the container.
Answer:
Explanation:
Many workers in the late 1800s and early 1900s spent an entire day tending a machine in a large, crowded, noisy room. Others worked in coal mines, steel mills, railroads, slaughterhouses, and in other dangerous occupations.
The main goal of the labor unions during the late 1800s and early 1900s was fighting for better wages, better working conditions that included safety and reasonable hours of work. The struggle was also against child labor and getting health benefits for the workers and their families.
The labor movement in the United States grew out of the need to protect the common interest of workers. For those in the industrial sector, organized labor unions fought for better wages, reasonable hours and safer working conditions.
Many African countries are anyway struggling with money, and receiving a lot of foreign help. Having debt only makes their financial situation worse and increases the need for foreign help. So in a way, richer countries give money to African countries so that the African countries can give it back- this is not optimal.
Another reason is that a stronger Africa could buy more goods from other countries, and the economy of other countries would increase, too.
Yes, I believe that's true.

Alfonso's average speed was 400 meters per minute.