Answer:
A force exists that we knew nothing about that causes the acceleration.
Explanation:
In 1998, scientists observed from distances of supernovae in remote galaxies that the enlargement of the universe is accelerating. Besides, there is evidence that suggests that the universe is flat and infinite, as well as accelerating in its expansion. In that respect, the force suspected to be responsible for this is called dark energy.
Answer:
Of the options provided "fast, cheap railroad transportation benefited is businesses" is the correct response.
Explanation:
The railroads made it possible to ship goods without having to use the canals and rivers that transportation relied upon previously in what is today the Midwestern and south central United States. It helped to reduce the time it took to transport goods across vast distances and it helped to lower costs. The railroads made the rapid settlement of the Midwest and the West Coast possible. Factories on the East Coast also benefited from the expansion of the railway system as raw materials could be shipped in at lower prices and in greater quantities. The products they produced could also be more efficiently sent to far-off locations for sale.
Set point is when humans desire a stable state in their physiological systems whereas the system state must be monitored and compared to an ideal level.
<h3>What is a system?</h3>
A system is a set of rules or a group of related things that work toward a common goal.
An example is an organization that is made up of many administrative and management teams, who aim is to work togther inoder to achieve the goals of the organization.
Hence, set point is when humans desire a stable state in their physiological systems whereas the system state must be monitored and compared to an ideal level.
Learn more about system here : brainly.com/question/25594630
Answer:
There are 3 major parts of the respiratory system: the airway, the lungs, and the muscles of respiration. The airway, which includes the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles, carries air between the lungs and the body's exterior.
