Thirteen-year-old Grace's blood tests indicate that her levels of testosterone are about twice as high as they were a few years ago, and that her estradiol levels are about eight times higher than earlier. Grace is most likely experiencing:

A. normal changes as a result of having entered puberty. B. difficulties because of significant imbalances in hormonal levels. C. abnormal levels of development of male physical characteristics. D. abnormal levels of development of female physical characteristics.

uhh idk for sure but i think it makes it difficult to pump the oil through the oil rigs

they encountered severe weather for which they were poorly prepared.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.