1. which of the following is not an immediate effect on the environment due to fossil fuel use?

a. acid rain

b. erosion

c. water pollution

d. high costs

2. you are given a mineral and you need to determine its identity. which of the following will not be an ideal property to study to identify the mineral?

a. density

b. fracture

c. crystal shape

d. melting point

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

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