Answer:
Astronomers use NASA's Spitzer Infrared Telescope and Chandra X-ray Observatory to see young stars, which emit a lot more high-energy radiation than their older versions.
Explanation:
Acids have a ph of 6 and below whole bases have a ph of 8 and above. If a human has to much acid in their stomach they can take a pill that will lower it back to its normal ph level
The student is trying to see which substance (disinfectant 1, 2, 3, or the distilled water) can disinfect the most.
I think it is D for mountains form from the movement of tectonic plates which create volcanoes that erupt and form mountains
Answer:The optical microscope, often referred to as the light microscope, is a type of microscope that commonly uses visible light and a system of lenses to magnify images of small objects.
Explanation:Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
