Practicing the Skill Which of these problems are best solved using trial and error?

What other methods would you use for some of the problems?

Explain why

Why?

Use Trial

and Error

Try

Something

Else

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Emma can't decide if she

wants to be a professional

athlete or a musician.

Scientists want to know how

certain chemicals will affect

plant growth.

Which statement best describes a significant cause of world war ii? o a. the economic boom that followed world war i allowed countries to build up huge militaries. o b. the treaty of versailles, which ended world war i, left lasting resentments in many countries. o c. the rise of imperial states in asia caused european powers to unite for their common defense. o d. the league of nations encouraged european states to form secret military alliances.