To solve the question "Which of the following addictive habits could lead to danger of urinary bladder, throat, and lungs cancer?", we can follow these steps:
### Step-by-Step Solution:
1. **Identify the Options**: The question presents several addictive habits. We need to analyze each one to determine which is linked to the risk of specific cancers (urinary bladder, throat, and lungs).
2. **Analyze Tar**:
- Tar is a substance found in tobacco smoke.
- It is known to be carcinogenic, meaning it can lead to cancer.
- Tar is specifically associated with lung cancer, throat cancer, and urinary bladder cancer due to the harmful chemicals it contains.
3. **Evaluate Morphine**:
- Morphine is an opioid used primarily for pain relief.
- While it is highly addictive and has side effects, it is not directly linked to causing cancer in the urinary bladder, throat, or lungs.
4. **Consider Heroin**:
- Heroin is also an opioid and is derived from the poppy plant.
- Similar to morphine, it is highly addictive and has various health risks, but it is not specifically known to cause the cancers mentioned.
5. **Review LSD**:
- LSD (Lysergic Acid Diethylamide) is a hallucinogenic drug.
- It alters perception and mood but does not have a direct association with causing cancer.
6. **Conclusion**:
- After evaluating all options, it is clear that **tar**, which is found in tobacco, is the only substance that poses a significant risk for urinary bladder, throat, and lung cancers.
- Therefore, the correct answer to the question is **tar**.
### Final Answer:
**Tar** is the addictive habit that could lead to the danger of urinary bladder, throat, and lungs cancer.
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