Continental Polar
maritime tropical
cold or wind
An increase in mass would lead to an increase in the temperature and pressure at the core of the star, leading to a faster rate of nuclear fusion reactions and a brighter luminosity. It would also affect the star's lifespan, as higher mass stars burn out more quickly than lower mass stars. Additionally, higher mass stars are more likely to end their life cycles in supernova explosions.
The greater the mass, the greater the force of gravity.
If Earth didn't move, airmasses would float in straight lines. However, since Earth does in fact move, it causes air masses to arc.
An air mass originating over north central Canada would most likely be cold and dry.
Mass doesn't change. Mass the is substance of an object, moving it around won't affect how much mass it has, only adding or subtracting from the object would affect the quantity of mass. The weight would change because gravity is inversely proportional to distance but not the mass.
The productive capacity of the soils people use is likely to be affected by mass movement erosion.
to affect a science activity you can drop it and it would lower the mass
Well it would be a milligram.
Landslide.
Yes. And if massive enough then the density may increase due to gravitational attraction in a matter of time we can perceive. even with a small mass this is happening, however it may take 1000s to millions of years for it to be measurable.In most cases the mass would remain the same (absent radioactivity losses) but the density would increase. If highly radioactive its mass would likely decrease over time.