Which statements describe turbidity? Check all that apply. This is the paragraph:

Turbidity is a term used to describe water clarity, or how clear the water is. Cloudy water is said to be turbid. Turbid water may be a result of a buildup of sediments, which are pieces of rocks that have been broken down and eroded or transported by surface runoff. Human activities that remove plants in an area may increase erosion. Sediments can get into the gills of fish, which can then decrease their growth and delay development. Sediments prevent sunlight from reaching the producers of the aquatic ecosystem, such as algae. This, in turn, affects the food webs in this ecosystem.

There are 3 choices that are correct out of the 5.

Turbidity is a measure of water clarity.
Turbidity may be caused by sediments.
Turbidity may be a result of human activities.
Turbidity increases algae and fish populations.
Turbidity is transported to freshwater sources through rain.

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

You see a white marker with an orange circle and black lettering. what does this marker tell you