Every component from producer to grocery store can trips to the process of the ———— chain please help

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

Is an official language in every north african country

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.