Match the following a. Primary pollutant
b. Secondary pollutant Indoor air pollution
d. Pollution control Acid Precipitation
f. temperature inversion
g. lung cancer h. deafness
i. international government
J. nausea e. 31. Ground-level ozone (B) 32. Scrubber 33. Radon gas I 34. Nitrogen oxides 35. Decreased pH 36. Possible long-term effects of air pollution 37. Necessary to control acid precipitation 38. Atmospheric condition trapping pollution​

There are six elements that make up most of the human body. which of the following is not one of these six elements?

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.