I'm pretty sure he discovered the Pacific Ocean.
Answer: Radioactively-labeled materials
Explanation: nuclear medicine is a medical specialty that uses radioactive tracers to diagnose and treat different diseases. Radioactive tracers are materials that can vary according to the purpose of the method. For most diagnostic, the radioactive tracer is administered by intravenous injection. However it may also be administered by inhalation, by oral ingestion, or by direct injection into an organ.
SPECT scans are primarily used to diagnose and track the progression of heart disease, and the major purpose of PET scans is to detect cancer and monitor its progression, response to treatment, and to detect metastases. This two methods are the most used in nuclear medicine.
The destruction of an opponent’s resources is the best description of a scorched earth policy.
Option B
<u>Explanation</u>:
A strategy used by the military of a nation that aims to destroy the assets which might be useful for the opponent or enemy to attack when retreating from a position. This military strategy used becomes a policy which is known as scorched earth policy.
The assets they aims to destroy are usually weapons, any industrial resources, communication sites and vehicles used for transportation. This whole process is carried by the military either in the enemy territory or in its home territory while invading.
<span>A filibuster is a speech given in legislatures to stall the passage of laws. The modern filibuster is normally attributed to Charles Stewart Parnell, an Irish MP in the British House of Commons. He used this tactic to draw attention to the Irish MPs demand for home rule in Ireland.</span>