Convection is when cool air sinks and warm air rises. i am not 100% sure though
You can identify a mineral by its appearance and other properties. The color and luster describe the appearance of a mineral, and streak describes the color of the powdered mineral.
A 50.0 ml sample of 0.108 m h2so4 is diluted to 250.0 ml. Its new molarity will be 0.0216 m.
Dilution would be the process of lowering a solute's concentration in a solution. It usually just includes combining the solution with much more solvent, such as water. A solution is diluted when more solvent is added without increasing solute.
Molarity can be calculated by using the formula:

where, M is molarity and V is volume.
Given data:
= 0.108 m
= 50 ml
= 250 ml
Put the value of given data in above equation.
0.108 m × 50 ml = M × 250ml
M = 0.0216 m
Therefore, the new molarity will be 0.0216 m.
To know more about molarity
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Answer:
Elliptical galaxies are one of the three types of galaxies. They have a rounded shape of an ellipse, like a stretched-out circle. They lack the swirling arms that are a main feature of spiral galaxies.