1. which cloud type is best described as sheets or layers that cover much or all of the sky?
a. cumulus
b. cirrus
c. stratus
d. alto
2. which term means "rainy cloud"?
a. stratus
b. nimbus
c. cirrus
d. cumulus
3. compared to clouds, fogs
a. colder
b. of a different composition
c. at lower altitudes
d. drier

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

Which gas prevents the spread of fire and extinguishes it? is a type of compressed gas that prevents the spread of fire and extinguishes it.