Canals are typically filled with water through natural sources such as rivers, lakes, or groundwater. In some cases, water is deliberately diverted from nearby sources or reservoirs through sluices and gates. Additionally, rainfall and runoff can contribute to maintaining water levels in canals. In some regions, pumps may also be used to move water into the canal system when necessary.
water vascular system
canals
water-made canals
The fluid-filled canals that provide balance in the inner ear are called the semicircular canals. These canals detect angular acceleration and help the brain to maintain balance and spatial orientation.
seasonal canals are those canals that are not having water throughout the year
Canals can connect bodies of water, usually rivers.
In early Middle Eastern civilizations probably first built canals to supply drinking and irrigation water. Gangs of laborers (called "navvies" or "navigators") first constructed British canals to provide artificial waterways for more efficient transportation of goods and materials during the Industrial Revolution of the eighteenth century. Canals served to open up countries to the Industrial Revolution, just as the Internet is opening up the world to the Information Revolution.
perennial canals : They are linked to dams and barrages to provide water throughout the year and they irrigate a vast area.Inundation canals : long canals taken off from large rivers are called inundation canals. They receive water when the river is high enough and especially when it is in flood
Semicircular canals
Castes
The Aztecs built causeways and canals by using a combination of manual labor, stone, and soil. They constructed causeways to connect the city to the mainland and to navigate the water-filled landscape around Tenochtitlan, their capital city. Canals were used for transportation, irrigation, and drainage, allowing trade goods and resources to be easily transported throughout the city.
its because of the water