Bissoy.com
Doctors Medicines MCQs Q&A

Bio-remediation can be used at the sites contaminated with petroleum hydrocarbons.

Bio-remediation can be used at the sites contaminated with petroleum hydrocarbons. Correct Answer True

Petroleum hydrocarbons contaminated sites are removed by bioremediation which uses microorganisms and microbes generally use these petroleum hydrocarbons as nutrition source for growth thereby, degrading them from the environment.

Related Questions

In the context of solving pollution problems, what is/are the advantage/advantages of the bioremediation technique? 1. It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature. 2. Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms. 3. Genetic engineering can be used to create microorganisms specifically designed for bioremediation. Select the correct answer using the code given below:
Consider the following statements about hydrocarbons. i. Alkanes are saturated hydrocarbons that contain single bonds. ii. Alkynes are unsaturated hydrocarbons that contain one or more double bonds.  iii. Alkenes are Unsaturated hydrocarbons that contain one or more triple bonds.   
Study the following statements.
1. Petroleum is a major source of aliphatic hydrocarbons.
2. Coal is a source of aromatic hydrocarbons.
3. Petroleum is commonly called liquid gold.
Which of the statements given above are correct?
Statement I Petroleum is a mixture of many different hydrocarbons of different densities.
Statement II The grade of petroleum, depends mainly on the relative proportion of the different hydrocarbons.
In the question below is given a statement followed by two courses of action numbered I and II. On the basis of the information given in the statement to be true, then decide which of the suggested courses of action logically follow(s) for pursuing. Statement: The ground water of city Y has been found contaminated with high amounts of lead.  Course of action: I. Government needs to treat the contaminated water and provide water free from such impurities.  II. Government need to find out as how water was contaminated with lead. 
The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options. P: Young boys and girls seem to have become inordinately addicted to these sites. Q: The parents, teachers and the government must look into the problems being caused by these networking sites and must formulate a strategy either to curb or completely stop its fast growing negative influence on the minds of our youth. R: Smart-phones, computers, social media, internet and networking sites such as Facebook and Twitter have become source of major distractions for students. S: They are thoughtlessly and uselessly wasting their precious time on these sites.
Consider the following statements :  a. As of July 2018, a total of 1092 World Heritage sites exist across 167 countries. b. Italy, with 54 World Heritage sites has the most of any country (up to July 2018). c. India has 39 World Heritage sites (up to July 2018). d. A collection of Victorian, Gothic, and Art Deco buildings of Mumbai are declared as World Heritage sites in 2018.  Which of the above statements are correct ?
The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the mostlogical order of sentences from among the options. P: Young boys and girls seem to have become inordinately addicted to these sites.
Q: The parents, teachers and the government must look into the problems being caused by these networking sites and must formulate a strategy either to curb or completely stop its fast growing negative influence on the minds of our youth.
R: Smart-phones, computers, social media, internet and networking sites such as Facebook and Twitter have become source of major distractions for students.
S: They are thoughtlessly and uselessly wasting their precious time on these sites.
Assertion (A) Hydrocarbons are very good fuels.
Reason (R) The main sources of hydrocarbons are natural gas, petroleum and coal.
Consider the following statements.
1. Carbon black is obtained when methane is heated in absence of air.
2. Kerosene is a mixture of alphatic hydrocarbons.
3. Most of hydrocarbons from petroleum are obtained by fractional distillation.
Which of the statements given above are correct?