Ques: Answer the following question given this paragraph: Toxic waste must be disposed of properly or there can be serious consequences. Now, your waste should not be as colorful or toxic as shown here (if it is, get yourself to a doctor as soon as possible), but it still needs to be removed from you. And that is the role of the excretory system. The excretory system gets rid of waste and excess water. Q: What system of the body is responsible for ultimately ridding it of waste and excess water? Choices: - circulatory system - digestive system - respiratory system - excretory system A:
Ans: excretory system

Ques: Answer the following question given this paragraph: The emission spectrum of hydrogen is discontinuous. The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within the atom. Q: The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within what? Choices: - a rainbow - an element - the molecule - the atom A:
Ans: the atom

Ques: Answer the following question given this paragraph: Define physical change, and give examples of physical change. Q: Water molds mostly live in water or moist? Choices: - cells - biomes - plants - soil A:
Ans: soil

Ques: Answer the following question given this paragraph: Drip irrigation uses much less water than other methods. Q: Which kind of irrigation uses much less water than other methods? Choices: - constant - mist - solar - drip A:
Ans:
drip