Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth? A. dissolved oxygen
B. dissolved carbon dioxide
C. dissolved methane
D. dissolved ammonia

Which action is important to a pregnant woman’s health? see a doctor for regular x-rays drink alcohol in small amounts engage in regular physical activity eat a diet rich in seafood

A72-year-old woman fell in her bathtub and fractured her hip. in viewing the fracture, x-ray revealed osteoporotic changes in her bone as well. after reduction of the fracture, and immobilizing the bones with internal pins, what type of exercise would the doctor have advised her to do as soon as she was able in addition to prescribing calcium supplements to improve her bone mass?

Mary has spontaneously decide to make a meal for friends. she is beginning to prepare fin fish and realizes she wants to also prepare a hearty dish ready to serve at the same time. what should she prepare? a: rice which take 20 minutes b: past which takes 15 minutesc: baked potatoes, which take 50 minutes. d: grilled garlic bread, which takes 5 minutes. e: boiled dumplings, which takes 17 minutes.