How does the glass of a greenhouse model the carbon dioxide and other gases in earthís atmosphere?
1. the glass absorbs light and releases energy in the form of heat.
2. the glass allows light in and traps much of the radiated heat.
3. plants in a greenhouse absorb energy from the sunlight and can grow through the winter.
4. the glass blocks incoming light and reduces the amount of heat absorbed by the plants inside. ( 4 or one is my answer but im unsure of it)

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

What is the most stable monatomic ion formed from nitrogen

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .