1. Some gaseous pollutants bond with water to form little droplets known as . a. Rainfall
b. Water droplets
c. Pollution
d. Aerosols

2.Which size of pollution particle is most dangerous to human health?
a. Large particles (10 micrometers wide or more)
b. Medium sized particles (3-10 micrometers wide)
c. Small particles (less than 3 micrometers wide)
d. None, because pollution is not hazardous to human health

3.Which pollutants are hazardous to human health?
a. Sulfur dioxides
b. Carbon Monoxide
c. Volatile organic compounds (VOCs)
d. All of the above

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.