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Asked/Added Questions From NCERT:


Question 1. Asked on :15 September 2019:12:14:09 PM

 Describe briefly the three ways in which individual with a particular trait may increase  in population.

-Added by Himanshi Verma Science » Environment

Answer:

priyanshu kumar

 1. Variation helps in survival of individual

2. Sexual reproduction results in variation.

3. Adaptation and natural selection.

-Answered by priyanshu kumar On 03 October 2019:12:05:43 PM


Question 2. Asked on :03 September 2019:03:15:42 PM

 What is BOD?

-Added by Shruti Srivastva General Knowledge » Environment

Answer:

Akki chauhan

Biochemical oxygen demand

Biochemical Oxygen Demand is the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

-Answered by Akki chauhan On 04 September 2019:10:49:22 AM


Question 3. Asked on :01 March 2019:03:36:17 PM

 We should not use polybags as they are non-biodegradable abd cause pollution. How can we replace them to become environment friendly.

-Added by Akki chauhan Science » Environment

Answer:

Himanshi Verma

 We can use it by making polybags recycle and either recycling it we can use paper polybags. If someone gives u something in plastic bags offer him not to do so.

-Answered by Himanshi Verma On 01 March 2019:03:43:16 PM


 

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