Someone help me plz. In each of the following pairs, circle the form of radiation with the LONGER WAVELENGTH:

A. red light or blue light

B. microwaves or radiowaves

C. infrared radiation or red light

D. gamma rays or UV rays

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology