What kept the polynesians and lapita from creating an empire in this region? the vast expanse of the ocean they encountered stronger groups they lacked technical knowledge there were not enough people

8. is a technique that uses the images from several telescopes to produce a single image. a. reflection b. interferometry c. radiation d. refraction

List 3 factors commonly used to select the location of a city

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.