Answer:
Rocks can be divided into three basic classifications: igneous, sedimentary, and metamorphic. The following tests are used by experts to classify rocks: Hardness Test Minerals are scaled in range from 1 to 10, with 1 being softest and 10 hardest. The method of determining hardness is the scratch test.
Answer: When your hypothalamus senses that you're too hot, it sends signals to your sweat glands to make you sweat and cool you off. When the hypothalamus senses that you're too cold, it sends signals to your muscles that make your shiver and create warmth. This is called maintaining homeostasis.
Water molecules are COHESIVE due to HYDROGEN bonding. This property of water allows the individual molecules to stick to each other and allows for movement of water from roots to leaves.
The correct answer is B.
Water has certain qualities that allows it to be incorporated into the bodies of living organisms. Water forms hydrogen bonds because it is a polar molecule. The formation of these bonds leads to the cohesive nature of the substance making it suitable as a biological solvent.
