Answer:
Compared with human vision, these snakes can sense electromagnetic waves that have:
3. a lower frequency and a longer wavelength.
Explanation:
Human eyes are not able to detect the infrared region of the electromagnetic spectrum. We can experience it as heat when, for instance, we get close to a hot object. <u>The snakes mentioned in the passage, however, have special sensory organs that can detect infrared, which means they sense waves that have a lower frequency and a longer wavelength than the ones visible to us. Let's compare infrared to what is detectable by human eyes:</u>
<u>Visible: wavelength: 400 nm – 700 nm; frequency: 790 THz – 430 THz.</u>
<u>Infrared: wavelength: 700 nm – 1 mm; frequency: 430 THz – 300 GHz.</u>
<u>The longer the wavelength, the lower the frequency.</u>
B to identify the main idea
a. Ancient: as an adjective, it relates to a remote period of time. As a noun, it refers to an aged person or a person that lived in ancient times. Here's a sentence with this word:
“Ancient Greece history is long, yet very interesting.”
b. Limits: a limit is “a point or level beyond which something does not or may not extend or pass.”
“Thanks to the system of Checks and Balances, all three branches of the government has limits to their power”
c. Obviously is an adverb meaning “clearly.”
“I was obviously uncomfortable with all that noise”
Answer:
the reader should judge the quality of a writer work by understanding the inner of the poem or story ,biography. and also by seeing the vocabulary.and with we that we should also see that the inner meaning is so deep and the author has said it with so simplicity
Explanation:
