What usually develops along a front where cold air meets warm air?

The ph of your mouth is very similar to that of stomach. true or false?

Your pendulum clock which advances 1.0 s for every complete oscillation of the pendulum is running perfectly on earth at a site where the magnitude of the acceleration due to gravity is 9.80 m/s2. you send the clock to a location on the moon where the magnitude of the acceleration due to gravity is 1.65 m/s2.

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.