Answer:
It's: The Empirical approach and relies on the observation and experimentation
Answer:
A
Explanation:
He made the proclamation so colonists won't settle west into Native American land.
December 1952 in London, a four-day-lengthy atmospheric inversion created the worst smog in history. the loss of life toll at the end attributed to the smog turned into expected at: caused by a combination of industrial.
exceptional Smog of London, deadly smog that blanketed the metropolis of London for five days (December 5–9) in 1952, as a result of an aggregate of business pollution and high-stress weather conditions. This combination of smoke and fog added the town to a near standstill and led to lots of deaths.
Humans have recognized that sulfate was a massive contributor to the fog, and sulfuric acid particles have been fashioned from sulfur dioxide launched by means of coal burning for residential use and electricity flora, and different means,” lead author Renyi Zhang, a scientist at Texas A&M college, stated in an assertion.
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Answer:
placebo
Explanation:
We often hear about placebos being used in pharmacological tests. A placebo is an inert substance, sometimes called a "sugar pill," which can be given in place of the drug being evaluated.
Scientists commonly use placebos to study the effects of a new drug. This is done by providing the drug to a number of people who participate in the trial, while the rest receive another substance that lacks medical or therapeutic properties. Test participants do not know if they received the placebo or the actual drug. Often, even doctors know which participants ingest the drug and which not until the end of the pharmacological test.