some of them not right so please give the right solution a Circle the right answ

Question

some of them not right so please give the right solution

a Circle the right answer in the i. In a ecosystem, (primary producers/consumers/decomposers) convert inorganic carbon into organic compounds that store energy. ii. In subsurface, the water in the unsaturated zone is referred to as (groundwater/vadose/water/freshwater). ii. A phototropb/chemotroph/heterotroph) by definition uses light as its energy source. iv. Which of the following is not used as a disinfectant in drinking water treatment process? (monochloramine (NH_2Cl) chlorine dioxide (CIO_2) (perchlorate) v. The main purpose of softening process in drinking water treatment is to remove (suspended solids hardness pathogens). vi. Which of the following is a criteria based on National Ambient Air Quality Standards? (carbon dioxide (CO_2) lead (Pb)/arsenic (As)) vii. In air pollution control, electrostatic precipitation is used to remove (carbon monoxide (CO) particulate matter/sulfur dioxide (SO_2). viii. In coagulation-flocculation process, which of the following chemical is used as a coagulant? (alum (Al_2(SO_4)_3.14H_2O)/hydrated lime (Ca(OH)_2) soda ash (Na_2CO_3) ix. En hazardous waste management, (Solid Waste Disposal Act Resource Conservation and Recovery Act Comprehensive Environmental Response, Compensation and Liability Act) holds generators responsible for the wastes they produce from cradle to grave. x. Which of the following methods is an in situ groundwater remediation strategy? (pump- and treat biobarrier disinfection)

Explanation / Answer

i) Primary Producers (Plants convert inorganic carbon into organic carbond by the process called photosynthesis)

ii) Vadose Water ( Be casue we call the unsaturated zone as vadose zone)

iii) Phototroph (because Photo means light)

iv) Perchlorate (because perchlorates polutes water and remaining two can be used as disinfectants)

v) Hardness (Becasue the water with high hardness need to be softened)

vi) Lead (Pb)

vii) particulate matter ( Because electrostatic precipitaion removes fine particle in the air)

viii) Alum (Al2 (SO4)3.14H2O (Alum is being used as coagualant in coagualation-flocculation process)

ix) Resource Conservation and Recovery act ( This act deals with generation and disposal of waste)

x) biobarrier ( This is the insitu groundwater remediation strategy)

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