If it was 72 degrees at 8: 00 and it is still 72 degrees at 12: 00 how could this be possible?

Lava and other matierls luanced from a volcano and into the air are referenced as

Reasons for factor mobility of a combine harvester, cotton, an oil platforn and a woodland

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.