Answer:
Maturation effect
Explanation:
Maturation is a factor that threatens the internal validity. The experiment does not happen overnight. The experiment can be happened in a couple of days, weeks, year and so on.
The dissertation experiment does not run for a long time. Many of the maturation effects occur within a very short period. It can occur within a few days. Many factors occur with subjects such as tiredness, boredom, and hunger inattention, etc.
Thus Emma finds that there was a significant increase in their vocabulary. She does not conclude that it happened because of the maturation effect.
Answer:
Answer is Option 2: U.S. leaders worked to improve relations with foreign countries to protect its access to natural resources.
Explanation:
United States has always wanted to maintained its relations with foreign ministers to protect its natural resources. This is why U.S concerned regarding Middle East in 1970s. It is believed to be foreign policy of U.S. to dominate Middle East. Oil has always been abundant in Middle East so U.S. has always tried to keep access to such natural resources.
Other options like U.S worked to bring peace and encouraged the creation of OPEC as per options 1 and 3 are incorrect. Option 4 is also incorrect.
Answer:
based on physical and mental toll-agricultural work is a difficult way to make a living
Explanation:
Answer:
En 1733, Peter Stephens se estableció en el lugar cerca de "The Point" (área donde se unen los ríos Potomac y Shenandoah), y creó un ferry desde Virginia (ahora Virginia occidental) hasta Maryland a través del Potomac. Catorce años después (1747), mientras viajaba de Maryland a Virginia, Robert Harper pasó por el área que se llamaba "The Hole" (la brecha entre montañas en el curso del río Potomac) y reconoció el potencial industrial del sitio a causa de la potencia hidráulica que podían generar los dos ríos y el tráfico que se podía transportar a través del río Potomac. Harper pagó a Stephens 30 guineas por los derechos de residencia de Stephens, ya que la tierra en realidad pertenecía a Lord Fairfax.
Explanation:
Have a good day and the answer is B
