variability

This is mainly due to the variability of the extracts and the fact that each person behaves differently.

While there are clear guidelines as to what you are looking for, Dr Wong says there is still a lot of variability.

Like heatwaves on land, sea temperatures are affected by natural variability and short-term weather.

That's why the country's climate is so changeable and that variability also makes mapping some climate changes more difficult.

But the way the teams have prepared their cars for the race adds extra potential for variability.