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which of the following is a true statement about the marshall plan?
a. it was designed to aid poor people in the united states.
b. it was implemented in 1954.
c. it was named after truman's secretary of state.
d. it gave europe exactly $100 million dollars in aid.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: