Question:
Select the most appropriate option that can substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’.
When plastic waste was burnt, a complex weave of toxic chemicals is released.
दिए गए वाक्य में रेखांकित खंड को प्रतिस्थापित करने के लिए सबसे उपयुक्त विकल्प का चयन कीजिए:
When plastic waste was burnt, a complex weave of toxic chemicals is released.
Options:
- were burnt
- is burnt
- are burnt
- No substitution required
- were burnt
- is burnt
- are burnt
- No substitution required
Correct Answer: b)
Explanation:
The sentence states a general scientific truth (Zero Conditional: Present Simple in both clauses). Since the main clause is in the present passive tense (‘is released’), the time clause must also be in the present passive. Furthermore, ‘plastic waste’ is an uncountable singular noun, taking singular ‘is’. Therefore, ‘is burnt’ is the correct substitute.
यह वाक्य एक सामान्य वैज्ञानिक तथ्य (Zero Conditional) को व्यक्त कर रहा है। मुख्य उपवाक्य वर्तमान काल (‘is released’) में है, अतः समय उपवाक्य भी Present Tense में होना चाहिए। इसके अतिरिक्त, ‘plastic waste’ अगणनीय एकवचन संज्ञा (uncountable singular) है, जिसके साथ ‘is’ आएगा। अतः सही रूप **is burnt** है।