Global issues are things like poverty, child labour, animal and child abuse, global warming (pollution, deforestation), intensive farming etc.
Answer: The Indian Removal Act was signed into law by President Andrew Jackson on May 28, 1830, authorizing the president to grant lands west of the Mississippi in exchange for Indian lands within existing state borders. A few tribes went peacefully, but many resisted the relocation policy
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.
Answer:
Ensure proper labeling by appropriately marking all classified material
Explanation:
In a variable ratio schedule, the number of times a behavior must occur before it is rewarded changes over time.
<h3>What's a variable?</h3>
- Variable( computer wisdom), a emblematic name associated with a value and whose associated value may be changed.
- Variable( mathematics), a symbol that represents a volume in a fine expression, as used in numerous lores.
- Variable( exploration), a logical set of attributes.
<h3>How do you measure variables?</h3>
- Statistical variables can be measured using dimension instruments, algorithms, or indeed mortal discretion.
- How we measure variables are called scale of measures, and it affects the type of logical ways that can be used on the data, and conclusions that can be drawn from it.
Learn more about variable here:
brainly.com/question/15740935
#SPJ4
