A boat traveled 80 miles downstream in 4 minutes. Then it traveled 60 miles upstream in 5 minutes. What was the difference between the rates of speed?

Compare demographic and environmental effects of the columbian

The map above shows the countries of the middle east. the country that is highlighted is a. iran b. israel c. saudi arabia d. turkey select the best answer from the choices provided a b c d

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed