Answer:
A. The earth's tilt toward the sun
Explanation:
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Answer:
Black Death was an epidemic of bubonic plague, a disease caused by the bacterium Yersinia pestis that circulates among wild rodents where they live in great numbers and density. Plague among humans arises when rodents in human habitats, normally black rats, become infected.
Explanation:
Examples of restrictions placed on studies with animal participation include: setting a cap on the amount of time the animal can “work”, provide realistic temporary home environments, ensuring consistent nourishment in the form of food and water on a time scale, allowance for social interaction with other animals, ensuring the experience is harmless, and following regulations set by the Animal Welfare Act (ACA)/ People for the Ethical Treatment of Animals (PETA)/ or another animal care and safety organization.
These restriction examples can help to ensure the health, happiness, and safety of participating animals.
It's D.
Elections are decided by the people who show up at the polls. In the United States, the oldest citizens are the most likely to cast their ballots, which gives them political clout beyond their numbers alone.
Some 61 percent of citizens age 65 and older voted in the November 2010 election, the best turnout of any age group. More than half (54 percent) of those ages 55 to 64 also cast a ballot. People under age 45 are much less likely to vote. Just 37 percent of 25- to 44-year-olds made it to the polls in November 2010. And not even a quarter (21 percent) of the youngest citizens—ages 18 to 24—entered a voting booth in 2010. Here's a look at some of the reasons senior citizens are more likely to vote than younger people.
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