Final answer:
Water usage has various causes including human consumption, agriculture, and industries. The effects of water usage include water scarcity and environmental damage.
Step-by-step explanation:
Water usage has various causes and effects. One of the main causes is human consumption for daily activities such as drinking, bathing, and washing clothes. Agriculture is another significant cause of water usage, where water is needed for irrigation to grow crops. Industries also use water for manufacturing processes.
The effects of water usage include water scarcity, where there is a limited supply of clean water for human use. This can lead to competition and conflicts over water resources. Another effect is the depletion of water sources and the disruption of ecosystems due to excessive extraction.
In summary, the causes of water usage are human consumption, agriculture, and industries, while the effects include water scarcity and environmental damage.