Photosynthesis uses energy from the sun to split water into oxygen and hydrogen. The oxygen passes into the atmosphere and the hydrogen joins with carbon dioxide to produce biomass. When living things need energy they take in oxygen for respiration. The oxygen returns to the atmosphere in the form of carbon dioxide.
Sewer Main Costs. 1  If youâve noticed symptoms of a bad sewer main, itâs probably worth paying somebody $250 to $500 to use a diagnostic camera to check it out because main line sewer repair is expensive. 2  If the line is clogged by tree roots or other blockage, you can use a sewer snake to try and clear them out.
1 This method can cost $50-$250 or more a foot, depending on the length and depth of the existing pipes, local rates and the ease of access. 2  Replacing an average sewer line from the house to where it connects to the public sewer system typically costs $3,000-$6,000. Many companies first do a video camera inspection of the pipes at a cost of $100-$800 but with an average price of $250-$550, depending on local rates and the total length of the pipes; often this amount will be deducted from the final bill if the same contractor replaces the sewer line.