Определите функцию подчёркнутой глагольной формы (Participle I, Gerund).
1. The result of vertical or convection currents is that the air in moving upward
expands and cools, causing precipitation.
2. Experience can be gained only by observing weather conditions and by pre-
paring and studying weather maps.
3. A study of successive weather maps, tracing the movement of the weather, is
essential to the problem of forecasting.
4. Depressions travel over the islands from west to east, bringing heavy rain.
5. The barometer is an instrument for determining atmospheric pressure.
6. Climate of big cities is only one small problem facing mankind.
7. In changing water into ice its composition is not changed.
8. So far as temperature is concerned, Britain is fortunate in having warmer winters than other districts in the same latitude.
2. There are 8 columns in the periodic table. In each column, elements are arranged by the same properties, such as the same orbital arrangement of electrons.
3. Mendeleev predicted properties of yet undiscovered (missing) elements and left empty spaces for them in the table.
4. There are natural groupings between the elements that are closely related to each other.
5. In order to understand better these natural groupings, chemists have tried to fit the elements into a single plan.
6. John Ncwlands made one of the first attempts to fit the relationships among the elements by suggesting the Law of Octaves.