Sentences with phrase «occur at certain times of the year»

For example, it's unclear if the interaction is instinctive or must be learned, whether it only occurs at certain times of year and so on.

These are foreseeable expenses that occur at certain times of the year: Christmas gifts, back - to - school clothing, family vacations, oil changes on the car.

Not exact matches

«Also, certain weeds occur only at certain times of the year and that information can be integrated into the models.»

Although the calculations of 18 - year rates of GMSL rise based on the different reconstruction methods disagree by as much as 2 mm mm yr - 1 before 1950 and on details of the variability (Figure 3.14), all do indicate 18 - year trends that were significantly higher than the 20th century average at certain times (1920 — 1950, 1990 — present) and lower at other periods (1910 — 1920, 1955 — 1980), likely related to multidecadal variability.The IPCC AR5 found that it is likely that a sea level rise rate comparable to that since 1993 occurred between 1920 and 1950.