The distance on a map of Guyana from the Round about TO Woolford Ave is measured 2 cm on a ruler. Measure the estimated distance in km using the linear scale below

Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. wavelength c. brightness d. intensity

Which of the layers of the earth has the following three characteristics? i. it is a solid outer layer. ii. it is between 3 and 30 miles thick. iii. it is separated into plates. a. the outer core b. the inner core c. the mantle d. the crust

How many structures do prokaryotic cells have in common with the eukaryotic cells? a. 2b. 3c. 4d. 5