Question: Answer the following question given this paragraph: Receiving Electromagnetic Waves Electromagnetic waves carry energy away from their source, similar to a sound wave carrying energy away from a standing wave on a guitar string. An antenna for receiving EM signals works in reverse. And like antennas that produce EM waves, receiver antennas are specially designed to resonate at particular frequencies. An incoming electromagnetic wave accelerates electrons in the antenna, setting up a standing wave. If the radio or TV is switched on, electrical components pick up and amplify the signal formed by the accelerating electrons. The signal is then converted to audio and/or video format. Sometimes big receiver dishes are used to focus the signal onto an antenna. In fact, charges radiate whenever they are accelerated. When designing circuits, we often assume that energy does not quickly escape AC circuits, and mostly this is true. A broadcast antenna is specially designed to enhance the rate of electromagnetic radiation, and shielding is necessary to keep the radiation close to zero. Some familiar phenomena are based on the production of electromagnetic waves by varying currents. Your microwave oven, for example, sends electromagnetic waves, called microwaves, from a concealed antenna that has an oscillating current imposed on it. Q: What happens to charges whenever they are accelerated? A:
OPTIONS:
- they fuse
- they darken
- they die
- they radiate
Answer: they radiate

input with options: Answer the following question given this paragraph: The scientific classification of modern land plants is under constant revision. Informally, land plants can be classified into the groups listed in Table below . The most basic division is between nonvascular and vascular plants. Vascular plants are further divided into those that reproduce without seeds and those that reproduce with seeds. Seed plants, in turn, are divided into those that produce seeds in cones and those that produce seeds in the ovaries of flowers. You can read more about each of these groups of plants in the next lesson. Q: The most basic division of land plants is between what type of plants? A:
OPTIONS:
- perennial and annual
- deciduous and evergreen
- succulents and conifers
- nonvascular and vascular
output: nonvascular and vascular

Q: Answer the following question given this paragraph: Fibrous root systems have many small branching roots, called fibrous roots , but no large primary root. The huge number of threadlike roots increases the surface area for absorption of water and minerals, but fibrous roots anchor the plant less securely. Q: Fibrous root systems have many small branching roots called what? A:

OPTIONS:
- vines
- taproots
- tendrils
- fibrous roots

A: fibrous roots

input: OPTIONS:
- enthalpy
- ionization
- gravity
- electronegativity Now, answer this question: Answer the following question given this paragraph: The electronegativity of an atom determines how strongly it attracts electrons to itself. Q: What determines how strongly an atom attracts electrons to itself? A:
A:
output: electronegativity

Answer the following question given this paragraph: Q: What bodily structures consist of the endothelium and its basal lamina? A:

OPTIONS:
- veins
- muscles
- fibers
- capillaries

Answer: capillaries

Q: Answer the following question given this paragraph: An addition reaction is a reaction in which an atom or molecule is added to an unsaturated molecule, making a single product . An addition reaction can be thought of as adding a molecule across the double or triple bond of an alkene or alkyne. Addition reactions are useful ways to introduce a new functional group into an organic molecule. Q: What is a reaction in which an atom or molecule is added to an unsaturated molecule, making a single product? A:

OPTIONS:
- complete reaction
- homeostasis
- single reaction
- an addition reaction

A:
an addition reaction