state gov Punjab Patwari Mock Test 2023 General Science Biology Ecology & Environment

ନିମ୍ନଲିଖିତ ଇନ୍ଧନ ମଧ୍ୟରୁ କେଉଁଟି ସର୍ବନିମ୍ନ ପରିବେଶ ପ୍ରଦୂଷଣର କାରଣ ହୋଇଥାଏ?

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ଡିଜେଲ
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ପେଟ୍ରୋଲ
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ହାଇଡ୍ରୋଜେନ
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କିରୋସିନି
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