1. Passive voice: "One effective way for the government to improve safety is by increasing police presence in public areas." This uses a passive structure to focus on the action rather than the doer, which is common in formal recommendations.
2. Conditional clause: "When there are more officers patrolling the streets, it acts as a deterrent to crime and reassures citizens." The use of 'when' introduces a conditional situation, showing cause and effect.
3. Present simple tense: The answer uses present simple tense throughout ("acts as a deterrent," "reassures citizens," "means they can respond"), which is appropriate for stating facts and general truths.
4. Relative clause: "which can make a big difference in dangerous situations" is a relative clause that adds detail and explanation to the previous statement.