Which statement best describes the impact of 20th-century conflicts such as world war i and world war ii? a. they resulted in countries giving up on efforts to protect human rights. b. they allowed european countries to seize control over enormous colonial empires. c. they took place on a regional scale rather than influencing the entire world d. they contributed to future conflicts by failing to resolve important issues.

The best answer is D. They contributed to future conflicts by failing to resolve important issues.

The end of WWI and consequently the end of WWII were not enough to end the political and ideological disputes between the nations. Europe for the first time was not the strongest Imperialist empire it was in the past, and two different nations rise to power: The United States and the Soviet Union, with different ideological views about society. And because of this, we had different emerging conflicts such as the Korean War, the Vietnam war, and so many others.

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.