Answer the following question given this paragraph: Isotopes have different numbers of neutrons in their nuclei. Q: Isotopes have different number of these in their nuclei? Choices: - protons - electrons - atoms - neutrons A:
neutrons
Answer the following question given this paragraph: Soil is a precious resource. It allows us to grow food and the materials we use to make everything from the shirt you have on to the medicine you took this morning. Soil is made up of small pieces of rock that have broken down over hundreds, if not thousands, of years. Soil is also partly made up of the remains of plants and animals, and is home to many organisms, from earthworms to ants. But soil can be damaged by unsustainable farming practices and clear-cut logging. In this chapter, you will learn how soil forms, what it contains, and how to protect it. Q: What precious resource allows us to grow food as well as materials we turn into clothing and medicine? Choices: - petroleum - mercury - gasoline - soil A:
soil
Q: Answer the following question given this paragraph: Note Surgical removal is often advised for a gallbladder that becomes infected, inflamed, or perforated. This surgery does not seriously affect digestion because bile is still produced. Q: Gall bladder removal surgery does not seriously affect digestion because ______ is still being produced. Choices: - saliva - blood - plasma - bile A:
A: bile
Question: Answer the following question given this paragraph: After passing into the eye through the pupil, light passes through the lens. The lens of the eye is a clear, curved structure. Along with the cornea, the lens helps focus light at the back of the eye. This is pictured below ( Figure below ). Q: What is the clear, curved structure that works with the cornea to help focus light at the back of the eye? Choices: - pupil - retina - iris - lens A:
Answer: lens
*Question*
Answer the following question given this paragraph: Energy that the sun and other stars release into space is called electromagnetic energy . This form of energy travels through space as electrical and magnetic waves. Electromagnetic energy is commonly called light. It includes visible light, as well as radio waves, microwaves, and X rays ( Figure below ). Q: Energy that the sun and other stars release into space is called what? Choices: - static energy - kinetic energy - mechanical energy - electromagnetic energy A:
**Answer**
electromagnetic energy
*Question*
Answer the following question given this paragraph: When zinc reacts with hydrochloric acid, the reaction bubbles vigorously as hydrogen gas is produced. The production of a gas is also an indication that a chemical reaction is occurring. Q: What branch of biology focuses on heredity? Choices: - botany - cell biology - zoology - genetics A:
**Answer**
genetics