Government of India encourages the cultivation of ' sea buckthorn'. What is the importance of this plant?
1. It helps in controlling soil erosion and in preventing desertification.
2. It is a rich source of biodiesel.
3. It has nutritional value and is well-adapted to live in cold areas of high altitudes.
4. Its timber is of great commercial value.
Which of the statements given above is/are correct?
1 only
2, 3 and 4 only
1 and 3 only
1, 2, 3 and 4
The question asks about the importance of 'sea buckthorn' cultivation, specifically focusing on its benefits. We need to evaluate each given statement to determine its correctness regarding the properties and uses of sea buckthorn.
C) 1 and 3 only. Statements 1 and 3 accurately describe the importance of sea buckthorn, highlighting its role in environmental protection (soil erosion, desertification) and its nutritional value and adaptability to cold, high-altitude regions.
The question asks for the chief characteristic of 'mixed farming'. We need to understand the definitions of different farming practices to identify the correct option.
Correct Option: C) Rearing of animals and cultivation of crops together
A particular State in India has the following characteristics:
1. It is located on the same latitude which passes through northern Rajasthan.
2. It has over 80% of its area under forest cover.
3. Over 12% of forest cover constitutes a Protected Area Network in this State.
Which one among the following States has all the above characteristics?
Arunachal Pradesh
Assam
Himachal Pradesh
Uttarakhand
The question asks to identify an Indian state based on three geographical and environmental characteristics: its latitudinal position, its forest cover percentage, and the proportion of its forest cover under Protected Area Network. We need to evaluate each option against these criteria.
A) Arunachal Pradesh meets all three criteria: its latitudinal extent aligns with northern Rajasthan, it has over 80% forest cover (82.95% as per ISFR 2021), and a substantial portion of its forests are part of a Protected Area Network.
Consider the following crops of India :
1. Cowpea
2. Green gram
3. Pigeon pea
Which of the above is/are used as pulse, fodder and green manure?
The question asks to identify which of the given crops (Cowpea, Green gram, Pigeon pea) are used as pulse, fodder, and green manure. We need to evaluate each crop's uses across these three categories.
Based on the uses described, all three crops—Cowpea, Green gram, and Pigeon pea—serve the triple purpose of being a pulse, fodder, and green manure.
D) 1, 2 and 3 — All three crops (Cowpea, Green gram, and Pigeon pea) are known for their multiple uses as pulses for human consumption, fodder for livestock, and green manure for soil enrichment due to their nitrogen-fixing properties.
Consider the following factors:
1. Rotation of the Earth
2. Air pressure and wind
3. Density of ocean water
4. Revolution of the Earth
which of the above factors influence the ocean currents?
The question asks to identify the factors that influence ocean currents. Ocean currents are complex systems driven by various forces. We need to evaluate each given factor to determine its role in shaping these currents.
Based on this analysis, factors 1, 2, and 3 directly influence ocean currents.
Correct Option: B) 1, 2 and 3
With reference to the wetlands of India, consider the following statements:
1. The Country's total geographical area under the category of wetlands is recorded more in Gujarat as compared to other States.
2. In India, the total geographical area of coastal wetlands is larger than that of inland wetlands.
Which of the statements given above is/are correct?
The question asks us to evaluate two statements regarding wetlands in India. We need to determine which of these statements is/are correct based on available geographical and environmental data.
A) 1 only. Statement 1 is correct as Gujarat has the largest wetland area in India. Statement 2 is incorrect because inland wetlands cover a larger area than coastal wetlands in India.
Consider the following crops of India :
1. Groundnut
2. Sesamum
3. Pearl millet
which of the above is/are predominantly rainfed crop/crops?
The question asks to identify which of the given crops are predominantly rainfed. Rainfed crops are those that rely primarily on rainfall for their water requirements, rather than artificial irrigation. This is a common characteristic of crops grown in arid or semi-arid regions, or during monsoon seasons in India.
D) 1, 2 and 3 — All three crops, Groundnut, Sesamum, and Pearl Millet, are predominantly grown under rainfed conditions in India, especially during the Kharif season, due to their drought-tolerant nature and reliance on monsoon rainfall.
When you travel in Himalayas, you will see the following:
1. Deep gorges
2. U-turn river courses
3. Parallel mountain ranges
4. Steep gradients causing land-sliding
Which of the above can be said to be the evidences for Himalayas being young fold mountains?
1 and 2 only
1, 2 and 4 only
3 and 4 only
1, 2, 3 and 4
The question asks to identify features observed in the Himalayas that serve as evidence for them being young fold mountains. We need to evaluate each given feature in the context of geological processes associated with young fold mountains.
All four features (deep gorges, U-turn river courses, parallel mountain ranges, and steep gradients causing land-sliding) are characteristic geological and geomorphological evidences for the Himalayas being young fold mountains, indicating ongoing tectonic activity, rapid uplift, and active erosion.
D) 1, 2, 3 and 4 — All the listed features are indeed characteristic of young fold mountains like the Himalayas, providing strong evidence for their recent formation and ongoing geological activity.
Normally, the temperature decreases with the increases in height from the Earth's surface, because
1. the atmosphere can be heated upwards only from the Earth's surface
2. there is more moisture in the upper atmosphere
3. the air is less dense in the upper atmosphere
Select the correct answer using the codes given below:
The question asks why temperature generally decreases with increasing height from the Earth's surface. This phenomenon is known as the environmental lapse rate. We need to evaluate each given statement to determine its validity in explaining this temperature decrease.
Statement 1: The atmosphere can be heated upwards only from the Earth's surface.
Statement 2: There is more moisture in the upper atmosphere.
Statement 3: The air is less dense in the upper atmosphere.
Based on the analysis, statements 1 and 3 are correct explanations for the decrease in temperature with increasing height.
Correct Option: C) 1 and 3 only
The acidification of oceans is increasing. Why is this phenomenon a cause of Concern?
1. The growth and survival of calcareous phytoplankton will be adversely affected.
2. the growth and survival of coral reefs will be adversely affected.
3. The survival of some animals that have phytoplanktonic larvae will be adversely affected.
4. The cloud seeding and formation of clouds will be adversely affected.
Which of the statements given above is/are correct?
1, 2 and 3 only
2 only
1 and 3 only
1, 2 3 and 4
The question asks about the concerns associated with ocean acidification. We need to evaluate each statement to determine if it is a valid concern related to this phenomenon.
A) 1, 2 and 3 only. Statements 1, 2, and 3 correctly describe significant concerns related to ocean acidification, impacting marine calcifiers and the food web. Statement 4 is not a direct or primary concern of ocean acidification.