Explanation : 

New York Declaration on Forests (NYDF)

The NYDF was first endorsed and announced at the United Nations Climate Summit in September 2014.

Global Timeline to End Forest Loss

The NYDF outlines ambitious targets for the protection and restoration of forests, including halving the rate of loss of natural forests by 2020 and striving to end natural forest loss by 2030.

Non-Binding Commitment

The NYDF is not a legally binding treaty or international declaration. It is a voluntary and non-binding action agenda that brings together a coalition of willing partners.

Diverse Endorsement

The NYDF has been endorsed by a wide range of stakeholders, including governments, multinational companies, civil society, and indigenous peoples’ organizations.

India’s Involvement

While India has engaged in various international efforts to combat deforestation and climate change, the NYDF is not a treaty with “signatories” in the traditional sense. Instead, it is endorsed by various entities, and it is not clear from public records whether India was among the initial endorsers in 2014. However, India has been involved in other international forest conservation efforts.

Explanation : 

Both statements regarding the influence of prevailing winds on ocean temperatures are correct, and here’s the explanation for each:

Tropical Zone: Influence of Trade Winds

In the tropical zone, the western sections of the oceans are warmer than the eastern sections due to the influence of trade winds. These easterly winds, blowing from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere, push surface water westward. This results in the accumulation of warm surface water in the western parts of the tropical oceans, such as the Pacific and Atlantic Oceans. These conditions foster warm western boundary currents like the Gulf Stream and the Kuroshio. Conversely, cooler water upwells on the eastern sides, leading to cooler ocean temperatures there.

Temperate Zone: Influence of Westerlies

In the temperate zone, the westerlies contribute to making the eastern sections of oceans warmer than the western sections. These winds, blowing from the southwest in the Northern Hemisphere and from the northwest in the Southern Hemisphere, influence ocean surface currents and lead to the formation of warm eastern boundary currents. Examples include the North Atlantic Drift and the North Pacific Drift, which warm the eastern shores of North America and Asia. In contrast, the western sections are cooled by currents such as the California Current and the Labrador Current.

Explanation : 

Permaculture Farming

In the realm of agriculture, permaculture farming stands in stark contrast to conventional chemical farming by actively discouraging monocultural practices. Instead, it promotes polycultures and a variety of plant and animal species to foster a self-regulating ecosystem. Conventional farming, with its focus on monocultures, may lead to issues such as pest infestations and soil degradation.

Impact on Soil Salinity

Conventional chemical farming can inadvertently increase soil salinity, particularly when fertilizers and irrigation are mismanaged. This accumulation of salts can be detrimental to plant life and overall farm productivity. In contrast, permaculture farming employs organic techniques like composting and crop rotation, which help maintain the soil’s health without contributing to salinity.

Adaptability to Semi-Arid Regions

Contrary to the belief that permaculture is unsuitable for semi-arid regions, it can be tailored to fit such environments. Permaculture design principles take into account local conditions, focusing on water conservation, soil preservation, and the selection of crops and livestock that thrive in arid climates. This is in comparison to conventional farming, which also operates in these regions but often relies heavily on irrigation and chemical aids.

The Role of Mulching in Agriculture

Mulching is a core component of permaculture farming, where it serves multiple purposes, including moisture conservation, weed suppression, and soil fertility enhancement. While mulching is also present in conventional farming, it is not as integral to the practice as it is in permaculture, where it contributes to the overarching goal of creating a sustainable ecosystem.

Explanation : 

Adenoviruses and Retroviruses

The virology field often categorizes viruses based on their genetic material and replication methods. A common misconception is that adenoviruses have single-stranded DNA genomes, while it is actually the opposite. Adenoviruses are known for their double-stranded DNA genomes. They can infect various body systems, including the respiratory tract and nervous system.

Contrastingly, retroviruses are equipped with single-stranded RNA genomes. They utilize an enzyme known as reverse transcriptase to transcribe their RNA into DNA, which is then incorporated into the host’s genome. Although the resulting DNA is double-stranded, the retrovirus’s original genome is RNA.

Viruses and Diseases: Common Cold and AIDS

The common cold can be attributed to various viruses, including adenoviruses, in addition to rhinoviruses and coronaviruses. These viruses can cause respiratory symptoms akin to those of the common cold.

In the case of AIDS (Acquired Immunodeficiency Syndrome), the culprit is the human immunodeficiency virus (HIV), which is a retrovirus. HIV is notorious for attacking the immune system, leading to AIDS when not properly managed.

The statement about adenoviruses having single-stranded DNA is incorrect, while the association of the common cold with adenoviruses and AIDS with a retrovirus is correct. Therefore, “2 only” is the accurate answer.

Explanation : 

Bollgard I and II: Revolutionizing Cotton Agriculture

The Bollgard I and Bollgard II technologies are significant advancements in the field of genetically modified (GM) crop plants, particularly for cotton. Developed by Monsanto, now a part of Bayer Crop Science, these technologies incorporate genes from the bacterium Bacillus thuringiensis (Bt) into the cotton genome. The Bt genes are responsible for producing proteins toxic to certain insect pests, like bollworm larvae, which pose a significant threat to cotton crops.

Bollgard I: Introducing Pest Resistance

The introduction of Bollgard I marked a milestone in GM technology by providing cotton plants with resistance to pests such as the tobacco budworm, pink bollworm, and cotton bollworm. However, the reliance on a single Bt gene led to the development of resistance among some insect populations, prompting the need for a more durable solution.

Bollgard II: Enhancing Pest Resistance and Reducing Resistance Development

To address the issue of insect resistance, Bollgard II was developed, featuring two distinct Bt genes. This dual-gene approach significantly improves the plant’s defense mechanisms against pests and reduces the chance of insects developing resistance to the Bt toxins, as the probability of simultaneous resistance to two toxins is considerably lower.

The creation of Bollgard I and Bollgard II exemplifies the potential of genetic engineering to enhance crop plants. By inserting specific genes, scientists can bestow new traits such as pest resistance, which can lead to a reduction in chemical pesticide use, potential cost savings, and increased crop yields.

Explanation : 

Recombinant Vector Vaccines

Genetic engineering is a pivotal technique in the field of vaccine development. By manipulating an organism’s genes, scientists are able to create recombinant vector vaccines that stimulate the immune system without causing disease. This process involves inserting genetic material from a pathogen into a harmless vector.

Role of Genetic Engineering in Vaccine Development

Genetic engineering is crucial in the development of these vaccines. It allows for the precise insertion of pathogen antigens into the genetic makeup of a vector, which then instructs the vector to produce these antigens. When introduced into the human body, these vectors prompt an immune response that prepares the body to fight the actual pathogen in future encounters.

Using Bacteria and Viruses as Vectors

Bacteria and viruses are commonly used as vectors in the creation of recombinant vector vaccines. Viruses, such as modified adenoviruses, are especially effective due to their natural ability to enter cells and deliver genetic material. These viruses are engineered to be safe and incapable of causing disease. Although less common, bacteria can also serve as vectors in vaccine development, providing another method of delivering protective antigens to the host’s immune system.

Explanation : 

Origins of Palm Oil

Contrary to popular belief, the palm oil tree is native to West Africa, not Southeast Asia. Despite this, countries like Malaysia and Indonesia have become the leading producers of palm oil globally.

Industrial Uses of Palm Oil

Palm oil’s versatility extends to various industries. It is a key ingredient in cosmetics, such as lipstick, and is also used in personal care products like soaps and detergents for its conditioning properties and texture consistency.

Palm Oil in Renewable Energy

The use of palm oil is not limited to consumer products; it also plays a significant role in the production of biodiesel, a renewable energy source that is gaining traction as an alternative to fossil fuels.

Explanation : 

Culturing Bacteria

Bacteria are single-celled microorganisms that can be grown on various nutrient agar plates or in broth cultures. The media can be tailored to support the growth of specific bacteria by providing the necessary nutrients, such as carbon sources, nitrogen, vitamins, and minerals. Some bacteria require more specialized media if they have particular growth requirements, but in general, many bacteria can be cultured in the laboratory using artificial media.

Fungi Cultivation

Fungi, which include yeasts and molds, can also be cultured on artificial media. These organisms may require different nutrients compared to bacteria, often needing a source of carbon and nitrogen, among other nutrients. Fungi can grow on solid media like agar plates or in liquid cultures.

Viruses and Culture Limitations

In contrast to bacteria and fungi, viruses are not living organisms in the traditional sense; they are obligate intracellular parasites. Viruses require a host cell to replicate and cannot carry out metabolic processes on their own. As such, they cannot be cultured on artificial or synthetic media alone. To culture viruses, researchers must use living cells, such as cell lines derived from animals or humans, that the virus can infect, providing the necessary machinery for viral replication.

Therefore, the correct answer is “1 and 2 only” because bacteria and fungi can be cultured in artificial/synthetic media, while viruses cannot and require living host cells for propagation.

Explanation : 

Moringa and Tamarind

The Moringa (drumstick tree) is a leguminous evergreen tree. This statement is incorrect. Moringa oleifera, commonly known as the drumstick tree, is not a leguminous tree. It belongs to the family Moringaceae and is not evergreen in the strictest sense; it can be deciduous in dry conditions.

The Tamarind tree is endemic to South Asia. This statement is incorrect. The tamarind tree (Tamarindus indica) is not endemic to South Asia, although it is widely grown there. It is believed to have originated in Africa and is now found in many tropical regions around the world.

In India, most of the tamarind is collected as minor forest produce. This statement is correct. In India, tamarind is often collected from the wild, from trees growing in forests or rural areas, and is considered a minor forest produce.

India exports tamarind and seeds of moringa. This statement is correct. India is one of the largest producers of tamarind and moringa, and it exports both the tamarind fruit and the seeds of the moringa tree.

Seeds of moringa and tamarind can be used in the production of biofuels. This statement is correct. Seeds from both moringa and tamarind have been researched for their potential use in biofuel production. Moringa seeds contain oil that can be converted into biodiesel, and tamarind seeds contain polysaccharides that can be fermented to produce ethanol.

Given the analysis above, the correct statements are 3, 4, and 5. Therefore, the correct answer to the question is “3, 4, and 5“.

Explanation : 

Ocean Food Chains: Primary Producers

Primary producers are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. In the context of ocean food chains, primary producers typically refer to organisms that perform photosynthesis, converting sunlight into chemical energy, which then serves as the base for the ocean’s food web.

Examining Oceanic Organisms:-
Let’s examine the organisms listed:

1. Copepods

Copepods are small crustaceans found in the sea and nearly every freshwater habitat. They are not primary producers; instead, they are consumers that eat primary producers (like phytoplankton) or other small organisms.

2. Cyanobacteria

Cyanobacteria, also known as blue-green algae, are photosynthetic bacteria. They are indeed primary producers because they can produce their own food by photosynthesis, using sunlight to convert carbon dioxide and water into organic compounds.

3. Diatoms

Diatoms are a major group of algae and are among the most common types of phytoplankton. They are also primary producers, as they can perform photosynthesis and produce energy that supports other organisms in the ocean food web.

4. Foraminifera

Foraminifera are a large group of amoeboid protists with reticulating pseudopods, fine strands of cytoplasm that branch and merge to form a dynamic net. They are not primary producers; they typically feed on diatoms, algae, bacteria, and other small particles in the water.

Given this information, the correct answer is “2 and 3” because both cyanobacteria and diatoms are primary producers in the food chains of oceans. They are capable of photosynthesis and form the base of the marine food web, providing energy and organic material for a wide variety of marine consumers.