Answer:
While experimenting researcher can record, test or control the group and while observational study researcher can't do that
Explanation:
An experimental study can be under the control of someone who is doing the research or experiment.
The researcher can also manipulate the experiment and in the observational study, there are no experiments.
The observational study requires the research observing of something, this observing includes what happened in the past, what is saw in the past and what is now.
Answer:
The Texas markets was controlled by the Spaniards.
Explanation:
The Spaniards had practically controlled the Cattle markets in The New world ever since mid 1500s. When they entered Texas, it is easy for the Spaniards to established a large operation while keeping the expense really low. This prevented the Texas Ranchers from gaining enough Revenue locally.
This is why they're engaged in "Cattle Drives". They're manually transporting their cattle from Texas to another states and sell the castles there. (regions such as New Orleans / Missouri were the main destination for these ranchers)
