CBSE Sample Question Paper-2 for Class 12 Biology
FAQs on CBSE Sample Question Papers For Class 12 Biology 2016-17 - Mock Paper 2
1. Where can we download the sample questions for Class 12th biology?
The sample questions for Class 12th biology can be easily downloaded from the website of Vedantu. These can be downloaded and saved in pdf format so that the students can refer to them offline as well. The website of Vedantu makes sure that the candidates are provided with the best materials so as to guide and assist the students in scoring good grades in their board exams.
The practice of these sample questions will help the students by providing them with an idea of the question pattern in the examination. It will also help the student retain their reading and improve their time management skills. Along with this, the students will also get an idea about the areas that they might be lacking in and thus prepare accordingly for the exam.
2. What are the causes leading to global warming mentioned in CBSE Class 12 Biology Sample Question Paper-2 - Mock Paper(2023-24)?
Some causes that are giving rise to global warming gradually is;
The increased use of automobiles and the utilization of fossil fuels at an alarming rate.
Global warming is also the result of the increase in greenhouse gases.
The increased deforestation due to industrialization along with the change in land use is also the cause of global warming.
The increase of particulate matter in the atmosphere is also the cause of global warming.
The CFC emissions witnessed in airplanes and refrigerators are also the cause of global warming.
For more such insight into the subject, the students can refer to the website of Vedantu.
3. What do greenhouse gases refer to?
The greenhouse gases refer to those gases that trap the heat emitted by the sun on the surface of the earth’s atmosphere. These gases increase the atmospheric temperature and thus are termed greenhouse gases. The gases that come under this term are CO2, CH4, N2O, and CFC. The temperature of the earth is expected to go down to -18 degrees in the absence of these greenhouse gases.
For more information on the topic, the students are advised to visit the website of Vedantu. This website will help the students attain a deeper insight into the chapter which will eventually help them score good grades in the examination.
4. What is the difference between diapause and hibernation?
While on the one hand diapause refers to the period that results in suspended growth and development witnessed in many insects and invertebrates. During this period, the metabolic activities in these creatures undergo reduction. Hibernation, on the other hand, is the state of sleeping in which many creatures like fishes and amphibians pass the winter season. This they do in order to survive the food scarcity and cold weather.
The students can refer to the important questions on biology from the website of Vedantu, in order to get a better practice and hold of the subject.
