[BWS.06] The graph below shows the changes in the temperature of ice when it is heated from -20 °C to 100 °C. Heat curve for ice. The graph shows the changes in the temperature of ice when it is heated from negative 20 degrees Celsius to 100 degrees Celsius. Based on the graph, which of these conclusions is correct? Matter is in the form of ice in portions AB and CD. Matter is in the form of ice in portions BC and DE. Change of state takes place in portions AB and CD. Change of state takes place in portions BC and DE.

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.