Which of the Following Are the Two Main Substances Used

question 18

Multiple Choice

Which of the following are the two main substances used in cloud seeding?

• A)silver iodide and lead iodide
• B)lead iodide and dry ice
• C)ice crystals and flood powder
• D)silver iodide and dry ice

---

Definitions:

IR Absorption

The process by which molecules absorb infrared light at frequencies characteristic of their structure, used in infrared spectroscopy.

Spike

A sharp increase or sudden upward movement, as in the context of graphs, prices, or signals.

Strong and Broad

Typically refers to the characteristic appearance of certain signals in spectroscopy, indicating a large distribution of energy levels or interactions.

IR Absorption

The process where a molecule absorbs infrared radiation, leading to vibrational transitions, used in spectroscopy to identify chemical compounds.