stars are formed from massive clouds of gasses , dust and cosmic rays in universe called .

In what country/region do women comprise part of national government than anywhere else in the world?

Food can come from sustainable or unsustainable resources. why has the united nations suggested that bugs could be a better source of food than animals like pigs or cattle?

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4