Why is the Huang-He River Valley important to the history of China? A. The Mongol invasions were stopped in the Huang-He River Valley.

B. The first Chinese civilizations were created in the Huang-He River Valley.

C. The first interactions between China and Japan happened in the Huang-He River Valley.

D. Buddhism was created in the Huang-He River Valley.

The political, economic, or cultural environment that surrounds an event provides the event with its

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

Select the correct answer from each 1. ( )was a nineteenth-century artistic movement that influenced nationalism in europe. it emerged as a reaction to the emphasis on 2. ( ) in enlightenment philosophy. 1. liberalism, socialism, romanticism 2. reason, emotion, religion