Ques: Answer the following question given this paragraph: Electromagnetism is associated with charge and is a fundamental force of nature, like gravity. If charges are static, the only manifestation of electromagnetism is the Coulomb electric force. In the same way that gravitational force depends on mass, the Coulomb electric force depends on the property known as electric charge. Like gravity, the Coulomb electric Force decreases with the square of the distance. The Coulomb electric force is responsible for many of the forces we discussed previously: the normal force, contact forces such as friction, and so on - all of these forces arise in the mutual attraction and repulsion of charged particles. Q: What property does coulomb electric force depend upon? Choices: - electric case - electric neutral - electric half - electric charge A:
Ans: electric charge

Ques: Answer the following question given this paragraph: A: The copper has become tarnished. The tarnishalso called patinais a compound called copper carbonate, which is green. Copper carbonate forms when copper undergoes a chemical reaction with carbon dioxide in moist air. The green patina that forms on copper actually preserves the underlying metal. That's why it's not removed from the statue. Some people also think that the patina looks attractive. Q: What compound gives tarnished copper it's green color? Choices: - bronze - zinc - brass - copper carbonate A:
Ans: copper carbonate

Ques: Answer the following question given this paragraph: Beneath the crust is the mantle . The mantle is made of hot, solid rock. Through the process of conduction, heat flows from warmer objects to cooler objects ( Figure below ). The lower mantle is heated directly by conduction from the core. Q: What layer, made of hot, solid rock, is beneath the earth's crust? Choices: - marble - core - magma - mantle A:
Ans: mantle

Ques: Answer the following question given this paragraph: Q: First, high temperature denatures proteins and does what to cells? Choices: - finds them - develops them - exposes them - kills them A:
Ans:
kills them