A destructive change that is not caused by people A. Climate
B. Natural disaster
C. Severe weather
D. Latitude

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?