In which statement does the writer relay the main argument of the passage?
A) Books and DVDs can be given new life as well.
B)
Also, consider donating items such as old musical
instruments, toys, furniture, and eyeglasses.
there are numerous ways to reduce, reuse, and
recycle that take just a bit of creativity and a little
extra initiative.
many Web sites offer users the option to list books or
D) DVDs that they have for trade in addition to books or
DVDs they want to receive in return.
Ok

Which of the following is a question of morality? a.) delierately reporting false data b.) accidentally reporting false data c.) kepping a sloppy record of experimental observation d.) condition a drug experiment which will harm a lab rats

In the water cycle , when does water undergo a chemical change

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.