Environmental Biotechnology Questions and Answers – Introduction on Management Steps for Problem Soil Remediation

This set of Environmental Biotechnology Interview Questions and Answers focuses on “Introduction on Management Steps for Problem Soil Remediation”.

1. Which of the following is not a process of remediation?
a) Vitrification
b) Thermal
c) Bio-leaching
d) Chemical
View Answer

Answer: c
Explanation: In thermal process, contaminants removed by heat treatment, Vitrification is the use of high temperature that leads to fusion of contaminants, bio-leaching is a process used for extraction of metals and does not remove contaminants, Chemical method requires comparatively higher temperature and pressure to remove contaminants.

2. Soil remediation means cleaning up the _________
a) Bacterial contaminants
b) Residual effects of human activities
c) Biological contaminants
d) Non-Biological contaminants
View Answer

Answer: b
Explanation: Soil remediation is a process of removing residual effects of anthropogenic activities but bacterial contaminants don’t affect the land quality, hence, biological and non-biological contaminates do not affect the environment whereas it helps in fastening the process of bio-degradation.

3. What does physical method of treatment of contaminated materials include?
a) Microorganisms
b) Concentration and excavation
c) Toxic compounds
d) Ethidium bromide
View Answer

Answer: b
Explanation: Concentration and excavation is a physical method of treatment of contaminants, use of microorganisms is a biological method of treatment which is based on the activity of biological compounds, Ethidium bromide is carcinogenic, toxic compounds are not cost effective and also, harmful to the environment.

4. Which of the following is the most reliable method of soil remediation?
a) Bio-magnification
b) Bio-remediation
c) Lyophilization
d) Chemical method
View Answer

Answer: b
Explanation: Bio-remediation is the most efficient method as it uses biological organisms which is also environment friendly, Chemical method requires comparatively higher temperature and pressure, lyophilization is a process of freeze drying, Bio-magnification is the process by which toxic substances get deposited in the food chain.

5. Which of the following decreases the risk of secondary contamination in the physical method of soil remediation?
a) Concentration
b) Reduced cost
c) Quorum quenching
d) Lyophilization
View Answer

Answer: a
Explanation: Concentration of contaminants reduces the further risk of contamination as it involves addition of no reagents, lower energy demands leads to reduction in cost level but doesn’t reduce chances of secondary contamination, quorum quenching leads to inhibition of quorum sensing and lyophilization is a process of freeze drying.

6. Solidification is based on __________
a) CO2 release
b) Time consumption
c) Consume lots of energy
d) Encapsulation
View Answer

Answer: d
Explanation: Solidification is based on Encapsulation as it leads to capture of contaminants within and the process is not very fast, has minimal energy requirement, it doesn’t involve release of CO2.

Sanfoundry Global Education & Learning Series – Environmental Biotechnology.


To practice all areas of Environmental Biotechnology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.