Explanation

• LLM stands for Large Language Model.
• It is an advanced Artificial Intelligence (AI) model trained on large amounts of text data.
• LLMs can understand, generate, summarize, and translate human language.
• They are widely used in chatbots, virtual assistants, and content generation.
• Examples include ChatGPT, Gemini, Claude, and Llama.

Last verified on 21-10-2026

Explanation

• SaaS stand for Software as a Service.
• SaaS is a cloud computing model that allows users to access software over the internet without installing or maintaining it locally.
• Examples include Google Docs, Microsoft 365, and Salesforce.

Additional information:

• SaaS is one of the three major cloud service models: SaaS, PaaS (Platform as a Service), and IaaS (Infrastructure as a Service).

Last verified on 21-10-2026

Explanation

• HDMI stands for High-Definition Multimedia Interface.
• It transmits digital video and audio signals through a single cable.
• It is commonly used to connect computers, laptops, gaming consoles, and DVD players to televisions or monitors.
• HDMI supports high-quality video and multichannel audio, depending on the devices and cable specifications.

Last verified on 21-10-2026

Explanation

• Bitcoin uses blockchain technology to record and verify transactions on a distributed public ledger.
• A blockchain stores transactions in blocks that are linked together using cryptographic hashes.
• Transactions are validated by network participants through Bitcoin’s Proof of Work (PoW) consensus mechanism.
• Bitcoin was introduced by the pseudonymous creator Satoshi Nakamoto in 2009.

Last verified on 21-10-2026

Explanation

• Carbohydrates are the fastest and main source of energy.
• They are quickly converted into glucose in the body.
• Glucose is used immediately for energy production.
• They provide instant fuel for brain and muscles.

Last verified on 14-05-2026

Explanation

• Guava is rich in vitamin C, which improves the absorption of non-haem iron found in cereals, pulses, and other plant foods.
• Tea contains polyphenols that can reduce iron absorption when consumed with meals.
• Postponing tea until about 1–2 hours after the meal can help reduce its inhibitory effect on iron absorption.
• Combining vitamin C-rich foods, such as guava, citrus fruits, or tomatoes, with plant-based meals is a practical way to improve iron availability.

Last verified on 21-10-2026

Explanation

• A composite liner acts as a barrier that reduces the movement of contaminated liquid into the surrounding soil and groundwater.
• A leachate collection system collects polluted liquid produced when water passes through waste, allowing it to be treated safely.
• Methane capture collects gas released during the decomposition of biodegradable waste.
• Methane is a powerful greenhouse gas that contributes to global warming.
• Captured methane can be flared or used to generate energy, reducing its direct release into the atmosphere.

Last verified on 21-10-2026

Explanation

• Arsenic is a toxic substance that can contaminate groundwater and cause serious health problems after prolonged exposure.
• Water sources confirmed to have excessive arsenic should be clearly marked, and people should be advised not to use them for drinking or cooking.

Last verified on 21-10-2026

Explanation

• Nitrogen (N₂) makes up about 78% of Earth's atmosphere. 
• It is generally not considered an air pollutant in its normal form.

Additional information:

• Hydrocarbons can contribute to air pollution by reacting with nitrogen oxides to form ground-level ozone.
• Chromium, especially certain compounds such as hexavalent chromium, can pollute the air and pose serious health risks.
• Carbon dioxide (CO₂) is a greenhouse gas that contributes to global warming and is also classified as an air pollutant in some environmental frameworks.

Last verified on 21-10-2026

Explanation

• GIS (Geographic Information System) is a computer-based system used to collect, store, analyze, and display geographically referenced data.
• Its basic output is often a map that presents spatial information visually.
• GIS maps can show roads, buildings, rivers, land use, population distribution, and service locations.
• GIS also produces tables, statistics, reports, and spatial measurements, depending on the analysis.

Last verified on 21-10-2026