This question asks to identify the group of plants that originated in the 'New World' (the Americas) and were subsequently introduced to the 'Old World' (Europe, Asia, Africa) after the Columbian Exchange. This requires knowledge of the geographical origins of various cash crops.
Correct Option: A) Tobacco, cocoa and rubber. All three plants – tobacco, cocoa (chocolate), and rubber – are indigenous to the Americas (New World) and were introduced to the Old World after European exploration.
Consider the following statements:
1. The Asiatic lion is naturally found in India only.
2. Double-humped camel is naturally found in India only.
3. One-horned rhinoceros is naturally found in India only.
Which of the statements given above is/are correct?
The question asks to identify the correct statements regarding the natural habitat of certain animal species in India. We need to evaluate each statement individually based on known geographical distributions of these animals.
A) 1 only. Based on the analysis, only statement 1 is correct.
Consider the following pairs:
| Famous Place | River |
| 1) Pandharpur | Chandrabhaga |
| 2) Tiruchirappalli | Cauvery |
| 3) Hampi | Malaprabha |
Which of the pairs given above are correctly matched?
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
The question asks to identify the correctly matched pairs of famous places and the rivers they are situated on. We need to evaluate each pair individually based on geographical facts.
Based on the evaluation:
Thus, only pairs 1 and 2 are correctly matched.
Correct Option: A) 1 and 2 only
The question asks why official poverty lines are higher in some Indian States than in others. This relates to how poverty lines are determined and the factors that influence the cost of living across different regions.
Correct Option: B) price levels vary from State to State
This is the most direct and accurate reason. The poverty line is a monetary measure of the cost of basic needs. If prices for these needs are higher in one state, the monetary amount defined as the poverty line will also be higher there.
The question asks about the purpose of specific geoengineering techniques: cirrus cloud thinning and injecting sulphate aerosols into the stratosphere. These techniques are part of broader climate intervention strategies aimed at addressing a major environmental challenge.
D) Reducing the global warming. Both cirrus cloud thinning and the injection of sulphate aerosol into the stratosphere are geoengineering techniques primarily aimed at reducing the Earth's temperature by either reflecting more sunlight or allowing more heat to escape, thereby counteracting global warming.
The question asks to identify the context in which 'pyrolysis' and 'plasma gasification' are commonly mentioned. We need to understand what these terms mean and in which industrial or environmental processes they are primarily used.
Correct Option: D) 'Pyrolysis' and 'plasma gasification' are advanced thermal treatment processes primarily used in Waste-to-energy technologies. They convert various types of waste into energy or valuable products like syngas, bio-oil, or char.
The question asks to identify the wildlife sanctuaries and tiger reserves that are part of the Agasthyamala Biosphere Reserve. This requires knowledge of the geographical components of various biosphere reserves in India.
Correct Option: A) Neyyar, Peppara and Shendurney wildlife Sanctuaries; and Kalakad Mundanthurai Tiger Reserve
This option correctly lists the key protected areas that constitute the Agasthyamala Biosphere Reserve. Neyyar, Peppara, and Shendurney Wildlife Sanctuaries are located in Kerala, while the Kalakad Mundanthurai Tiger Reserve is in Tamil Nadu, all forming part of this UNESCO-designated biosphere reserve.
Consider the following statements:
1. Some species of turtles are herbivores.
2. Some species of fish are herbivores.
3. Some species of marine mammals are herbivores.
4. Some species of snakes are viviparous.
Which of the statements given above are correct?
1 and 3 only
2, 3 and 4 only
2 and 4 only
1, 2, 3 and 4
The question asks us to identify the correct statements regarding the dietary habits of certain animal species and the reproductive mode of snakes. We need to evaluate each statement individually based on general biological knowledge.
D) 1, 2, 3 and 4
All four statements are factually correct based on biological classifications and characteristics of the mentioned animal groups.
Consider the following pairs:
| Wildlife | Naturally found in |
| 1) Blue-finned Mahseer | Cauvery River |
| 2) Irrawaddy Dolphin | Chambal River |
| 3) Rusty-spotted Cat | Eastern Ghats |
Which of the pairs given above are correctly matched?
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
The question asks us to identify the correctly matched pairs of wildlife and their naturally found habitats. We need to evaluate each pair based on known geographical distributions of these species.
Based on the above analysis, pairs 1 and 3 are correctly matched.
Correct Option: C) 1 and 3 only
The question asks about the primary concern regarding microbeads released into the environment. We need to identify the most significant environmental impact associated with microbeads from the given options.
Correct Option: A) They are considered harmful to marine ecosystems.
This option accurately describes the major concern. Microbeads are ingested by marine life, leading to physical harm and the transfer of toxins, thereby disrupting the marine food web and overall ecosystem health.