Calculate the angular diameter ot the moon with these known tacts: moon's linear diameter 3480 km moon's average distance from earth 384,000 km number of arc seconds in 1 radian 2.06 x 10 a) 31 arc seconds b) 187 arc seconds c) 1750 arc seconds d) 1870 arc seconds

Distance that the transcontinental railroad covered from omaha to san francisco.

Why have the countries of the region had difficulty establishing democratic governments in recent years? choose all answers that are correct b is also correct i need to know if theres any morecommunists have overtaken the countries of the caucasus region. the soviets established national borders in the region without considering the location of ethnic groups. fighting continues between armenia and azerbaijan over the nagorno-karabakh region. civil war between communists and islamic groups in tajikistan resulted in thousands of deaths and refugees are forced to flee. in a test!

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d