Generally east sometimes north
Answer:
By comparing the features visible in each, multi-wavelength observations can complement each other, greatly extending our perceptions of the universe around us.
Explanation:
Scientific ocean exploration began in the 19th century, using wooden sailing ships. At that time, explorers had none of the technological sophistication and tools available today. A comparison of modern-day exploration with the late 19-century journey of the HMS Challenger<span>illustrates the progress that science has made in ocean exploration.</span>
Answer:
A)Crude oil an important source of energy is now extracted from beneath the ocean floor
Prime meridian
because it is the only longitude
