Which describes a virus?

Viruses produce toxins that damage cells.

Viruses enter host cells to reproduce.

Viruses reproduce best in warm, dark places.

Viruses damage cells indirectly.

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?

How does the entropy of steam compare to the entropy of ice?

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity