Final answer:
Arsenic is a naturally occurring element found in soil, air, water, and food. It can enter the body through various routes and can have long-term health effects. Rice is a crop that can accumulate arsenic and its content is being monitored.
Step-by-step explanation:
Arsenic is a naturally occurring element that can be found in various sources such as soil, air, water, and food. It can enter the body through ingestion, inhalation, and absorption. Arsenic exposure can have long-term health effects and is associated with various diseases including cancer. Rice is a crop that is more likely to accumulate arsenic due to certain cultivation methods. Arsenic in rice is a concern and its content is being monitored.