Answer:
increasing; speeding up is my answer
Radioactive "decay" means particles and stuff shoot OUT of a nucleus.
After that happens, there's less stuff in the nucleus than there was before.
So the new mass number is always less than the original mass number.
The wave diagramed in blue.
A tsunami is caused by earthquakes in the ocean. the earthquakes make a big rumble and the big wave travels and may go on the shore and its a called a tsunami hope this helpsBrainliest??