They may be more common because, as Jason Brown says, kids are just getting more advanced as human beings -- sometimes it does seem that way.
Hydrogen cars will become more common because costs have tumbled.
They are more common because a shift to electronic filing makes errors easier to spot.
In general, she said, hepatitis A and B outbreaks are more common, because they are more easily transmitted.
With extreme weather emergencies becoming more common because of climate change, cities and governments will need to harness that power.
In some parts of the country, especially Florida, special assessments are becoming more common because of quickly rising insurance rates.
Some are involved in the immune system, and presumably became more common because of the protection they provided against disease.
But he predicted that machine use would become more common because of the dwindling numbers of moiras.
If a mutation helped bacteria thrive in this new environment, it might become more common because of natural selection.
This kind of deal must become ever more common because we cannot let civilisation be narrow or let nationalism blind people to art's human value.
"And I thought, 'We're in trouble.' " Most people have heard about foreclosures' becoming more common because borrowers cannot pay the escalating rates on their mortgages.
