Even though the idea of recycling materials and using them in other ways seems like a good idea, why is the idea of using recycled tires at playgrounds a concern for some scientists?

Amanda, a forensics expert, has been called in to examine blood samples and prints found at a crime scene. she conducts a thorough analysis of the matter using her expertise and knowledge. she then prepares forensic reports to support the police investigation. what type of evidence has amanda provided in this situation? a. real evidence b. testimonial evidence c. direct evidence d. circumstantial evidence

When the blood leaves the atria (upper chambers) where does it flow to? a. aorta b. lungs c. ventricles d. rest of the body

Ahummingbird travels from plant to plant to feed itself. which of the following ecosystem services does this hummingbird most likely provide? i. pollination ii. seed dispersal iii. soil preservation i only ii only iii only i and ii only ii and iii only