Which statement is true about the use of radiation to treat cancer?
only weak x-rays can be used.
only powerful x-rays can be used.
only beta particles can be used.
only alpha particles can be used.

Modern weaponry has increased the number of deaths in wars and violent conflicts.

How have the greenhouse gasses increased from the year 2000 to 2018

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.