Which of these is a reliable source of information about claims that large
doses of vitamin c prevent colds?
a. a report that summarizes research on vitamin c published in a
peer-reviewed scientific journal.
b. a best-selling book about vitamin c written by a nobel-prize
winning scientist.
c. the website of a company that makes vitamin c supplements.
d. an interview with a doctor who uses vitamin c to treat her
patients.

Which of these is a reliable source of information about claims that large doses of vitamin C prevent colds?

A. A report that summarizes research on vitamin C published in a peer-reviewed scientific journal.

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.