Answer:
Toothpastes generally contain the following components: Water (20–40%) Abrasives (50%) including aluminum hydroxide, calcium hydrogen phosphates, calcium carbonate, silica and hydroxyapatite. Fluoride (usually 1450 ppm) mainly in the form of sodium fluoride.
Answer: E.) The days are the shortest or longest
Explanation: there are a summer and winter solstice when the sun reaches its highest or lowest point in the sky, which marks the longest or shortest day.
Answer: Karl Von Baer was an Estonian biologist and generalized the observations around embryology into laws bearing its name.
His laws indicate that the earlier we are in the embryonic phase, the closer the classes of distant organisms look to each other. As embryos develop, they diverge further from embryos of other species.
The von Baer sequence poses more problems for evolutionary mythology since natural selection cannot explain the pattern of embryonic development. Natural selection does not want to know if a trait is widespread or specific. It does not see attributes so it cannot sort them according to a special sequence.
According to the sociologists, the main cause for high divorce rates in the 1960s was <span>an increase in women working outside of the home, and also, greater social acceptance of divorce. The women had a changed social position and were more independent and able to finance themselves.</span>
