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Read the following passage and answer the item that follows. Your answers to this item should be based on the passage only. Many farmers use synthetic pesticides to kill infesting insects. The consumption of pesticides in some of the developed countries is touching 3000 grams/hectare. Unfortunately, there are reports that these compounds possess inherent toxicities that endanger the health of the farm operators, consumers and the environment. Synthetic pesticides are generally persistent in environment. Entering in food chain they destroy the microbial diversity and cause ecological imbalance. Their indiscriminate use has resulted in development of resistance among insects to insecticides, upsetting of balance in nature and resources of treated populations. Natural pest control using the botanical pesticides is safer to the user and the environment because they break down into harmless compounds within hours or days in the presence of sunlight. Plants with pesticidal properties have been in nature for millions of years without any ill or adverse effects on the ecosystem. They are easily decomposed by many microbes common in most soils. They help in the maintenance of biological diversity of predators and human health hazards. Botanical pesticides formulated from plants are biodegradable and their use in crop protection is a practical sustainable alternative. On the basis of the above passage, the following assumptions have been made: 1. Synthetic pesticides should never be used in modern agriculture. 2. One of the aims of sustainable agriculture is to ensure minimal ecological imbalance. 3. Botanical pesticides are more effective as compared to synthetic pesticides. Which of the assumptions given above is/are correct?
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to beat variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: All threads are strings. Statement II: All fibres are threads. Conclusion I: All strings are fibres. Conclusion II: All fibres are strings.
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to beat variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: All threads are strings Statement II: All fibres are threads Conclusion I: All strings are fibres Conclusion II: All fibres are strings
Rayon is superior to cotton in making gauge for wound treatment, because rayon
Which of the following fibres have good resiliency?
1. Wool
2. Polyester
3. Rayon
4. Cotton
Which of the following fibres when taken away from flame continue burning with an after glow?
1. Cotton
2. Rayon
3. Silk
4. Nylon
Which of the following are regenerated cellulosic fibres?
1. Rayon
2. Lyocell
3. Azlon
4. Alpace
Select the correct answer
Pigment colours are used in solution dyeing of the following fibres.
1. Nylon
2. Silk
3. Wool
4. Rayon
Match the following (a) Artificial silk (i) Nylon (b) First fully synthetic  fiber (ii) Replacement of wool (c) acrylic (iii) Rayon (d) Polyester (iv) Formed by monomer ester  
The first synthetic fiber to be made was rayon.