Which statement best completes the timeline about the history of Brazil? Brazil declares
independence
from Portugal.
Portuguese
royalty holds
power.
Military leaders
set up a
republic.
Brazil becomes
a military
dictatorship.
OA. Argentina invades and conquers Brazil.
OB. Rebellions split Brazil into two countries.
Oc. Brazil sets up an empire in South America.
O D. Citizens gain the right to vote for leaders.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

What must occur for air masses to form fronts

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.