Final answer:
The British government decided to repeal most of the Townshend Acts in March 1770 because the protests were hurting the British economy.
Step-by-step explanation:
The reason why the British government decided to repeal most of the Townshend Acts in March 1770 was because the protests against these acts were hurting the British economy. The Townshend Acts imposed taxes on various goods imported into the American colonies, which led to widespread boycotts and non-importation agreements by the colonists. These actions significantly impacted British merchants and manufacturers, resulting in a decline in trade and economic losses.
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