What effect does an alkali have on the ph of an acidic lake?

What are the subsystem of the earth

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?

Which of the following correctly describes the appearance of muscle tissue found in the heart? (2 points) single-nucleus, non-striated, short cells single-nucleus, striated, branching cells multinucleated, non-striated, branching cells multinucleated, striated, long threadlike cells