Ques:Q: What is used to date older fossils? Read this paragraph and choose the correct option from the provided answers: Choices: - search engines - litmus testing - electron microscopes - radioactive isotopes A:

Ans:radioactive isotopes
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Ques:Q: Which factor causes a cannon ball to move horizontally and then fall on the ground? Read this paragraph and choose the correct option from the provided answers: Earth's gravity also affects the acceleration of objects that start out moving horizontally, or parallel to the ground. Look at Figure below . A cannon shoots a cannon ball straight ahead, giving the ball horizontal motion. At the same time, gravity pulls the ball down toward the ground. Both forces acting together cause the ball to move in a curved path. This is called projectile motion . Choices: - cone motion - fluid motion - downward motion - projectile motion A:

Ans:projectile motion
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Ques:Q: What is the name of the blood protein that carries oxygen from the lungs to the body's assorted tissues? Read this paragraph and choose the correct option from the provided answers: Anemia is a disease that occurs when there is not enough hemoglobin in the blood to carry oxygen to body cells. Hemoglobin is the blood protein that normally carries oxygen from the lungs to the tissues. Anemia leads to a lack of oxygen in organs. Choices: - insulin - plasma - White Blood cells - hemoglobin A:

Ans:hemoglobin
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Ques:Q: What is the name of the galaxy we live in? Read this paragraph and choose the correct option from the provided answers: Like other spiral galaxies, our galaxy has a disk, a central bulge, and spiral arms. The disk is about 100,000 light-years across and 3,000 light-years thick. Most of the Galaxy's gas, dust, young stars, and open clusters are in the disk. Choices: - Centaurus A - Andromeda - Bode's Galaxy - milky way A:

Ans:
milky way
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