Microorganisms are used to help clean dirty water. Why is this step of water treatment important?
O because water contains a lot of bulky trash
O to help channel water to different areas
O to determine how dirty the water really is
O so that clean water can be used to grow crops
O to remove harmful bacteria and contaminants that can cause illnesses and diseases. This step of water treatment is important to ensure that the water is safe for human consumption and to protect public health.
Microorganisms are used to help clean dirty water. Why is this step of water treatment important?
1 because water contains a lot of bulky trash
2 to help channel water to different areas
3 to determine how dirty the water really is
4 so that clean water can be used to grow crops
Microorganisms are used to help clean dirty water because they can break down organic matter and remove harmful bacteria and contaminants that can cause illnesses and diseases. This step of water treatment is important to ensure that the water is safe for human consumption and to protect public health. Therefore, the correct option is not listed.
Your friend John is having trouble with his compost bin. The material in his compost pile doesn't seem to be decomposing well. You take a sample of the pile and check for the presence of microorganisms under the microscope. You see that there are indeed microorganisms; however, they don't appear to be growing very fast. John says that he regularly mixes his compost pile to expose it to oxygen but has noticed the pile feels cold. What is the most likely explanation for this problem? (1 point)
1 The compost pile contained incorrect amounts of "greens" and "browns".
2 The compost pile contained aerobic bacteria.
3 The compost pile was placed in the sunshine.
4 The compost pile was sufficiently moist.
The most likely explanation for this problem is option 1: The compost pile contained incorrect amounts of "greens" and "browns". This means that John may have added too much of one type of material (either greens or browns) and not enough of the other. This can throw off the carbon-to-nitrogen ratio, which can slow down the decomposition process. Additionally, even if he regularly mixes the pile, if the ratio is off, decomposition may not occur as rapidly as it should. The cold temperature of the pile suggests that the microorganisms aren't breaking down the materials efficiently.
A transportation engineering team designed a way to make a dangerous road pedestrian friendly.
What regulatory program should the team adopt to ensure this plan meets the communities need?
(1 point)
1 FWHA
2 SAFETEA-LU
3 MAP-21
4 MPO