Wood and charcoal are commonly used as the main fuel sources in many of the poorest countries due to their affordability and accessibility. However, their use can contribute to deforestation and indoor air pollution, which poses health and environmental challenges.
There are 195 countries in the world today.
The three main countries of the Caucasus region are Georgia, Armenia, and Azerbaijan. These countries are located at the crossroads of Europe and Asia and are known for their unique cultures, landscapes, and histories.
The 3 main countries that explored the New World were Spain, Portugal, and England. These countries led the way in the age of exploration and colonized many parts of the Americas.
Iran, Iraq, Saudi Arabia (hopefully)
Spain and Portugal were two main countries that encouraged the Age of Exploration. They sponsored numerous voyages and expeditions to seek out new trade routes and territories around the world.
The main fuel source for the work of the cell is the mitochondria.
The main fuel source for the work of the cell is the mitochondria.
The main fuel source for the work of the cell is the mitochondria.
coal was the main source at that time
The main fuel source for the work of the cell is the mitochondria.
Petroleum is the main source of energy for transportation.
The main fuel source for the work of the cell is the mitochondria.
coal
Petroleum
Hydrogen is the main source and Helium second.
fossil fuel
ATP is called the energy source (battery) of the cell.