Question

1. who was the first person to orbit the earth?

a. valentina tereshkova
b. neil armstrong
c. yuri gagarin
d. john h. glenn jr.

Explanation:

To determine the first person to orbit the Earth, we analyze each option:

• Option a: Valentina Tereshkova was the first woman in space, not the first to orbit Earth.
• Option b: Neil Armstrong was the first to walk on the Moon, not orbit Earth.
• Option c: Yuri Gagarin, in 1961, became the first human to orbit the Earth.
• Option d: John H. Glenn Jr. orbited Earth later, not the first.

Answer:

c. Yuri Gagarin