The half-life of carbon-14 is 5730 years. A piece of linen found today contains carbon-14 and gives an activity of 15 counts per minute per gram of carbon. If an anthropologist found an ancient piece of linen believed to date
back to the Neolithic period which gave only 7.5 counts per minute per gram of carbon, how old is the ancient
linen ?

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

Which of the following best describes technology a. something created for only scientists to use b.the method of thinking that scientists use. c.the application of engineering to create useful products. c. a scientific idea

Will a solution form when the solvent and solute are both nonpolar? a. not likely b. never c. most likely