Tigris and Euphrates
The two main sources in water vapor are farming and manufacturing
I'm a dumdass i dont know
The two main sources of heat in the troposphere are solar radiation, which warms the Earth's surface, and the release of latent heat energy from water vapor condensing into clouds and precipitation.
The two main sources for obtaining oxygen are the air - 23% of air is oxygen - and water by electrolysis.
The two main sources of salt are natural deposits in salt mines and sea water. Salt can be harvested from salt mines through mining and from sea water through the process of evaporation.
The two main sources of air pollution are the toxins released from factories and automobiles.
No, the main sources of the Nile are the White Nile and he Blue Nile
The Blue Nile and the White Nile are the two main sources of the Nile River.
The two main sources of light energy are natural light from the sun and artificial light from sources like light bulbs and lamps. Both sources produce electromagnetic radiation that our eyes perceive as light.
Carbohydrate,fat
The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.The Romans obtained their food by either growing it or by importing it. Egypt and Sicily were two of the main sources for Roman food.
Oil and Plants