Sentence examples for many effects from inspiring English sources

The phrase "many effects" is correct and can be used in written English.
It is typically used to refer to a number of different outcomes or consequences of a particular action, event, or situation. For example: - The new law had many effects on the economy, including a decrease in unemployment and an increase in consumer spending. - The scientist studied the drug's potential side effects and found that it had many effects on the body, both positive and negative. - The teacher reminded her students that their actions can have many effects, not just on themselves but on others around them as well.