The idea of invisible ink had been around for a long time.
Write using lemon juice as ink, for instance, and the
writing will be invisible. Heat the paper, and the writing
will appear, looking as if it were written in brown ink.
British agents used two types of ink. One could be made
visible by holding the paper over the flame of a candle;
the other could be read by applying a common chemical.
Major John André, the chief British intelligence officer in
New York, told his agents to put an F in the corner of
letters containing invisible ink needing fire to read and A
for those needing acid.
-George Washington, Spymaster,
Thomas B. Allen
What is the central idea of the passage?
* Invisible ink isn't really invisible at all.
Lemon juice is the earliest form of invisible ink.
British agents used invisible ink to send secret
messages.

Thomas paine's common sense convicted colonists to

Lesson 10: crossing borders: unit test “borders” 1.what does the mother’s refusal to state her nationality as canadian or american signify? a)that she resents governmental interference with her life b)that she identifies with neither country c)that she comes from somewhere else d)that she is stubborn and proud 4.the author’s chosen visual images,sensory details, and dialogue all convey a particular feeling in “delfino ii: diez in the desert.” thus feeling is known as: a)tone b)mood c)pathos 5.compare and contrast the poem “mexicans begin jogging” and the story “delfino ii: diez in the desert.” a)both are written about similar themes (immigration), but the story has a more serious mood than the poem b)both focus on mexican immigrants, but the story has a lighter tone than the poem. c)both main characters are afraid: diez is afraid of being caught smuggling people over the border, and soto is afraid of being caught working illegally. d)the tone in both selections is similar, but the subject matter differs slightly. 15. the tone of the poem “ka’ba” versus the tone of the poem “harlem ii” might be described as a)grateful vs ungrateful b)certain vs doubtful c) hurtful vs defeated d)safe vs dangerous

What character does the epithet “wide-ruling, lord of men” best describe? a) achilles b) apollo c) nestor d) agamemnongiving brainliest,