When gas escapes quickly and violently from lava it may produce a frothy glass full of holes left by former gas bubbles; this porous material, known as pumice, contains so many holes it can float on water.

Answer the following statement true (T) or false (F)


True

Environmental & Atmospheric Sciences

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A current problem with recycling is the inability to mix different plastics.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Pollutants that are formed as a result of chemical reactions with the atmosphere are called

A) primary pollutants. B) secondary pollutants. C) ash. D) sediment pollutants.

Environmental & Atmospheric Sciences

An advantage of multiple or sequential land use is that less land overall must be disturbed by human activities.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

What are genetically modified organisms (GMO)?

A) modified in a controlled environment B) produced close to where consumed C) sourced without use of chemicals D) response to global food industry E) none of the above

Environmental & Atmospheric Sciences