Answer:
c. Observational studies have both independent and dependent variables.
d. Observational studies can be used to test hypothesis.
Explanation:
Observational studies are ones in which a researcher makes observations about his thoughts and views. He observes the risk and other effects before actual test takes place. This is usually the initial phase of research where observations are made for suitability of certain things that are to be researched. There is initial feasibility test conducted to identify whether the further research process is beneficial or not.
Spring tides happen during full or halve oops and neap tides happens when the moo are at right angles. HOPE THIS HELPS
Answer: that colony was Maryland. George Calvert received a charter from King Charles I to found the colony of Maryland in 1634. The province began as a proprietary colony of the English Lord Baltimore, who wished to create a haven for Roman Catholics in the New World at the time of the European wars of religion.
Catholicism was introduced to the English colonies in 1634 with the founding of the Province of Maryland by Cecil Calvert, 2nd Baron Baltimore, based on a charter granted to his father George Calvert, 1st Baron Baltimore.
Child labor was big back in the 1890s. Children were deprived of their childhood. Instead of playing and having fun they were put to work. Instead of school they had to provide for their family. Ages 10 and up started to work. Most work places like coal mines were very harmful to the kids. Just from breathing the pollution in to cutting them self on work equipment it was a very dangerous place. In 1938 child labor was officially discontinued.
Answer:
Communism is a political and economic ideology that positions itself in opposition to liberal democracy and capitalism, advocating instead for a classless system in which the means of production are owned communally and private property is nonexistent or severely curtailed
Explanation:
