Question

kindly tell me meanings of circle words only plz help me guys i have exam??? ​

Answer 1

Explanation:

• primary cause means the first or the main cause
• second level cause means the disease which is caused at the second level
• similarly for third level cause as second one
• disease resistant power means the power of fighting against the diseases
• lack of public hygiene means the lack of cleanliness

hope it helps.....

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