Rat-tail tangs are preferable to full tangs in knives that will be used frequently.
a. true
b. false

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

When water freezes, it . contracts expands

Draw the structure of dna nucleotide with adenine as nitrogenous base