Class 12th Biology 2016 Set2 Outside Delhi Board Paper Solution
Question 2
Mention two advantages for preferring CNG over diesel as an automobile fuel.
Answer
Two advantages for preferring CNG over diesel are :
1) Very less is left unburnt as it burns most effecietly.
2) It is cheaper than other fuels.
Popular Questions of Class 12th biology
- Q:- What is spermatogenesis? Briefly describe the process of spermatogenesis.
- Q:- Why is reproduction essential for organisms? Answer
- Q:- Write a short note on
(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals. - Q:- With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte.
- Q:- What is DNA fingerprinting? Mention its application.
- Q:- What is oogenesis? Give a brief account of oogenesis.
- Q:- Describe the structure of a seminiferous tubule.
- Q:- What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.
- Q:- With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.
- Q:- Explain the Law of Dominance using a monohybrid cross.
Recently Viewed Questions of Class 12th biology
- Q:- Is the use of contraceptives justified? Give reasons.
- Q:- Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.
- Q:- What are the suggested reasons for population explosion?
- Q:- Is sex education necessary in schools? Why?
- Q:- Differentiate between gametogenesis from embryogenesis.
- Q:- What is primary productivity? Give brief description of factors that affect primary productivity.
- Q:- What do you think is the significance of reproductive health in a society?
- Q:- Which one of the following has the largest population in a food chain?
(a) Producers
(b) Primary consumers
(c) Secondary consumers
(d) Decomposers - Q:- What is the percentage of photosynthetically active radiation (PAR), in the incident solar radiation.
(a) 100%
(b) 50 %
(c) 1-5%
(d) 2-10% - Q:- Distinguish between the following:
(a) Hibernation and Aestivation
(b) Ectotherms and Endotherms