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RSB [31]
3 years ago
7

Discovered in the late 1800s and fundamental to important technological advances of the 20th century, _______ silently transmit

information all over the world to extend human communications. A) microwaves B) radio waves C) seismic waves D) infrared waves
Chemistry
2 answers:
kozerog [31]3 years ago
7 0

Radio waves. Microwaves would cook the earth, seismic waves would just cause earthquakes everywhere, and infrared waves would also cook the earth.

Marta_Voda [28]3 years ago
4 0

Answer:

B) radio waves

Explanation:

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Answer:

Current

Explanation:

An electric fence used to contain cattle works by transmitting energy through a conductor creating an electric current.

An electric fence is usually connected to an electric power source . The connection brings about the flow of electric charges(current) which is aided by the presence of a conductor. The conductor ensures smooth flow of electric current to achieve the main purpose of the fence.

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You need to specify the experiment to get an answer.  However, most experiments require qualitative data (descriptive, non-numerical data) and quantitative data (measured, numerical data).
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faust18 [17]

Answer:

Two valence electrons

Explanation:

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Balancing equations
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Make sure you numbers with variable are on one side and the numbers 

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