In what stage of wastewater treatment are large objects such as rags, sticks and garbage removed from influent?

1. primary treatment

2. secondary treatment

3. tertiary treatment

4. septic tank treatment

A scientist measures the vapor pressure of a liquid. At 15° C, the vapor pressure was 19 kilopascals. At 25° C, it was 31 kilopascals. At 35° C, it was 59 kilopascals. Which statement can be inferred from the observations? A.

What is the ratio of lactic acid (ka = 1.37x10-4) to lactate in a solution with ph = 4.12?

Write the complete balanced equation for the reaction between AlF3 and CaO.

Write a structural formula for the principal organic product formed in the reaction of methyl bromide with koch2ch3 (potassium ethoxide). click the "draw structure" button to launch the drawing utility. draw structure ...

What is a homogeneous?

Carbon is black, crystalline and hard. Oxygen alone is a gas. How does the substance that is formed when these two elements combine differ from carbon?

When should you read the label on a chemical container?

How does acetaldehyde impurity arise in the fermentation?

What are the three parts that make up Earth's mantle?

which pattern is a characteristic of a graph of exponential growth A straight line B rises sharply on the right C A shape D rises sharply on the left