During World War I,extensive Systems of Trenches Were Used by Both

question 16

Multiple Choice

During World War I,extensive systems of trenches were used by both sides

• A) because trenches prevented tanks from reaching the soldiers' positions.
• B) both because the destructive power of weapons meant soldiers could not live in the open field, and because trenches prevented tanks from reaching the soldiers' positions.
• C) because newly improved weaponry made conventional field battles too destructive.
• D) because soldiers were safer from poisonous mustard gas closer to the ground.
• E) None of these answers is correct.

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Heterozygous

Possessing two different alleles of a gene, one inherited from each parent, resulting in variation of a genetic trait.

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Death within the first year of life.

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A period of absence from work granted to a mother before and after giving birth, intended to help with the baby's care and ensure the mother's recovery.

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A variety of methods and devices used to prevent pregnancy and control fertility, including condoms, birth control pills, and intrauterine devices.