CBSE Class 10 Science Board Question Paper 2019 with Solutions
Q 1: What is the ecosystem and what are its components?
Ans: It is a mixture of an artificial ecosystem and natural ecosystem. You will also read about the components of an ecosystem which are biotic and abiotic factors. Biotic factors include producers, consumers and decomposers. Abiotic factors include climatic factors and edaphic factors.
This section of Class 10 Science Our Environment, discusses how the food chain is happening in our environment to balance the complete life process. You shall know how one organism feeds on another organism. Later part of the concept teaches about the characteristics of the food chain. It is a straight-chain process.
It is a process of the interconnection of food chains and how they are interdependent is explained in this section. As it is always an interlinking process, the food web is never straight. This will increase the stability in the eco-system.
Q 2: Explain about wildlife and forests concept from chapter 16 of class 10 science.
Ans: Here, the students will be introduced to the biodiversity hotspots. You shall also read about the plants and wildlife in a particular habitat. Why our ecosystem is getting damaged with the loss of biodiversity has been taught here. In the other part of the chapter we’ll be discussing:
Stakeholders of forest
Industrialists’ mentality and influence
People intervention in forests
Damage to forests and Wildlife
Q 3: What are the main concepts that are covered in chapter 2 acids, bases and salts. How many exercise questions are there in this chapter?
Ans: Acids, Bases and Salts is the second chapter of CBSE Board Class 10 Science Book. This chapter will teach you about the chemical properties of various substances. You will also come across concepts like acids and bases in the laboratory, more about salts, the family of salts, PH of salts, chemicals from common salts, are the crystals of salts really dry, how strong are acid or base solution, the reaction of metallic oxides with acids, the reaction of non-metallic oxides with base and how do acids and bases react with metals. Our CBSE NCERT Solutions for Class 10 Science consists of 1 exercise and 5 IN-Text question sets. The solutions given to them are in an easy to understand way.
Q 4: How Vedantu’s 2019 science question paper will help me with the exams?
Ans: At Vedantu, we understand the necessity of practice and, hence, we provided you with the CBSE Class 10 Science Previous Year Question Papers with Solutions. We also help you with the free pdf download as well for CBSE last year Science Paper Class 10 board question paper, so that you can print it out, and appear for a mock examination by yourself.
At Vedantu, we desire to change the age-old ways of education as it has become inefficient. Getting enough practise by solving CBSE previous year question papers class 10 Science is something we, at Vedantu, believe in strongly. By practising CBSE Class 10 Science Question Paper on a regular basis, students can overcome the fear of exams. These last year papers also aid in the pressure of taking a real exam.