Ectonic plate boundaries can be separated into three categories. name and describe each
ategory. on a separate sheet of paper, using colored pencils, draw and label each of the three
ectonic plate boundaries. be sure to indicate what makes each of the plate boundaries diferent

1. b

i don't know two though.

the answer is c) gray water systems reduce the amount of fresh water used.

p.s, you can use graywater on plants. they love it.

a hazardous or catastrophic event refers to the incident that possesses the tendency to disturb the abundance of life forms and landmass where it takes place. scientific advancements have resulted in the capability to determine some of the hazardous events prior to them taking place, permitting the society to plan for them, mitigating their damage, for example, there are devices of appliances that to determine the increase in the level of water in a river, to measure the earthquake's frequency.  

therefore, such kind of instruments can assist in determining the probability of flood and earthquakes taking place in a region. this the society to act on the basis of the information and can develop preventive measures or relocate in order to monitor the influences of hazardous events.