Answer the following question given this paragraph: Particles with opposite electric charges attract each other. This explains why negative electrons orbit the positive nucleus. Particles with the same electric charge repel each other. This means that the positive protons in the nucleus push apart from one another. So why doesn't the nucleus fly apart? An even stronger forcecalled the strong nuclear forceholds protons and neutrons together in the nucleus. You can learn more about these forces in the nucleus by watching the video at this URL:. Q: Particles with what type of electric charges attract each other? Choices: - similar - same - simple - opposite A:
opposite
(Question)
Answer the following question given this paragraph: Equal volumes of four different gases at the same temperature and pressure contain the same number of gaseous particles. Because the molar mass of each gas is different, the mass of each gas sample is different even though all contain 1 mol of gas. The relationships among the volume of a gas and its pressure, temperature, and amount are summarized in Figure 10.10 "The Empirically Determined Relationships among Pressure, Volume, Temperature, and Amount of a Gas". Volume increases with increasing temperature or amount but decreases with increasing pressure. Q: What does increased temperature cause the volume to do in a gas? Choices: - disappear - decrease - halve - increase A:
(Answer)
increase
Ques: Answer the following question given this paragraph: Q: Tissues of marine bony fishes gain what from their surroundings? Choices: - toxins - absorb salts - mercury - excess salts A:
Ans: excess salts
(Q).
Answer the following question given this paragraph: Sometimes people who are feeling anxious breathe too fast and become lightheaded. This is called hyperventilation. Hyperventilation can upset the pH balance of the blood, resulting in blood that is too basic. Explain why. Q: What also happens when people feel anxious and breathe too fast? Choices: - they become pettite - they become hostile - they become elated - they become lightheaded A:
(A).
they become lightheaded
Ques:Answer the following question given this paragraph: Deposition also occurs when a stream or river empties into a large body of still water. In this case, a delta forms. A delta is shaped like a triangle. It spreads out into the body of water. An example is pictured below ( Figure above ). Q: Deposition also occurs when a stream or river empties into a large body of what? Choices: - even water - homogeneous water - calm water - still water A:

Ans:still water
Question: Answer the following question given this paragraph: By about 320 million years ago, early amniotes had diverged into two groups, called synapsids and sauropsids. Synapsids were amniotes that eventually gave rise to mammals. Sauropsids were amniotes that evolved into reptiles, dinosaurs, and birds. The two groups of amniotes differed in their skulls. The earliest known reptile, pictured in Figure below , dates back about 315 million years. Q: How many years ago did early amniotes diverge into two groups? Choices: - .175 million years - .416 million years - 20 million years - 320 million years A:
Answer:
320 million years