Sewage and industrial pollutants dumped into a body of water can reduce the dissolved oxygen concentration and adversely affect aquatic species. In one study, weekly readings are taken from the same location in a river over a two-month period. Week Number Dissolved O2, ppm 1 4.7 2 5.0 3 5.7 4.3 4 5 4.7 6 4.9 7 4.5 8 5.1 The week 3 measurement in the data set is suspected of being an outlier. Use the Q test to determine if the value can be rejected at the 95% confidence level.

Is it  A agricultural  B fractural C industrial D municipal

Answer the four questions below using OSH Noise Exposure Regulations 2019 principles. Don't worry, the total of all answers should be one page-worth of words (around 300).

77 How will the planet respond on the long term to human changes to atmospheric CO2? DEFINITION TERM в I 78

Relative Microbial Activity 1.00 0.80 0.60 0.40 0.20 0.00 20 ⚫02 consumption • CO2 production 40 60 80 100 Water Filled Pore Space (% of total pores) Figure 1. The relationship between microbial activity and water filled pore space. The blue solid line indicates O2 consumption and the orange dashed line indicates CO2 production. 4. With your new-found appreciation for the cause(s) of the relationship between 02/CO2 and water filled pore space, I will now ask you to draw on Figure 1 to show the relative rate of N2 production from 10 to 95% water filled pore space. What is molecule that is the e acceptor when N2 is produced?

Air Pollution is a common contributor to health issues that is typically more abundant in urban environments. In this week's lab exercise you will examine levels of air pollution in the Phoenix Metropolitan area. The measurable levels of different pollutants indicate an overall air quality index (AQI). Anthropogenic sources of pollution (Carbon monoxide, Ozone) are a major contributor to higher AQI values but particulate matter (PM-10) is also important in determining an AQI score.   Choose all listed sources that would contribute to increased particulate matter (PM-10) levels. and EXPLAIN WHY YOU CHOOSE IT. DEFEND YOUR ANSWER choices: a. Water vapor from Tempe town Lake and local water parks b.Bovine flatulence from Shamrock Farms c.Dust from empty construction lots or a recent HABOOB! d. Pollen from Brenton's ridiculously diverse garden e. Helium expended from the NMR machine in Tempe

The table below shows the water quality results of palm oil mill effluent (POME)which you have analyzed in your laboratory. You are given a task to proposemitigation options for the palm oil mill after interpreting the findings. Interpretthe characteristics of POME and its potential effect on the aquatic system to helpyou in designing the mitigation options. Parameters  Value  Department of Environment (DOE) Limit pH 3.4 - 4.8 5 - 9  Biochemical Oxygen Demand (BOD) (mg/L) 25,000 - 43,750 100 Chemical Oxygen Demand (COD) (mg/L) 80,000 - 100,000  100 Oil and Grease (mg/L) 4,000 - 5,000  10

The current concentration of CO2 in the atmosphere is about 415 ppmv. It has been estimated that annual anthropogenic additions to the atmosphere are about 30 gigatonnes (Gt), of which about 15 Gt are removed into oceans and the terrestrial environment. a) Use these values to estimate the yearly net increase in atmospheric carbon dioxide mixing ratio, in ppmv. (note that 1 Gt = 1015g)

Can you please help answer this question regarding the graph it shows?

Design an experiment to solve the following problem:Determine the rate of methanogenesis (CO2 + 4H2 S CH4 +2H2O) in anoxic lake sediments and whether or not itis H2-limited.