Answer:
Pitch:it refers to the highest and lowness of a sound.
Wavelength: It is the distance measured from one crest to another, or from one trough to another.
Refraction of Light: The light bends as it travels from one medium to another.
Reflection of Light: It happens when light bounces back after hitting a well-polished surface.
Crest: The highest point of the wave from the center.
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Answer:
C. Reacting
Explanation:
Halogens donot have one valence electron they have seven valnece electrons, they have one unpaired electron. Due to their high electron affinity they are considered most reactive non-metals in their respecitve period.
Answer:
Atomic neutron mass electron number
Explanation:
Answer:
A. Autotrophs
Explanation:
an autotroph, def an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
humans and other mammals, plants, and a select few other things