What is definite problem areas?

Is mongo grain and ice grain homogeneous or heterogeneous? What is the meaning for domain? Is it safe to handle electrical appliances in deionized water? What Although meteorologists work hard to predict hurricanes path hurricanes paths hurricanes sometimes veer off course which of the words or group of words is the simple predicate? Does bone marrow cell divide through binary fission? How do tighten burette clamp on? In an oven heated to 100 degrees an ice cube would soon change from? Can carbon monoxide get in the lungs of someone on oxygen from someone else smoking cigarettes? What body system does the nerve cell belong to? What is the difference between Recovery Coke Oven and Non-Recovery Coke Oven? What is the significance of rock and fossil evidence? What is the scientific name or taxonomic classification of the plant Wheat? What type of catheter is made of a flexible tube with a balloon filled with sterile water at the end to hold it in place in the bladder? How many inches are in a backpack? Which organelles are labeled D and what is one feature that distinguishes them from the other labeled organelles? Why do bubbles tell you how fast photosynthesis is occuring? Why does William Herschel refer to stars as ghosts? How many grams in a teaspoon of salt? Why do roads have good drainage systems? Convection currents discovered date?