Unlike third-world and developing nations, the u. s. has no incidence of hungry or malnourished people.

a police officer and a ambulance

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

i think its 100.

hope this !