GS One‑Liners
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Latest facts first
| # | Question & Answer |
|---|---|
| 3626 |
Name one major cause of air pollution.
-
Industrial emissions and vehicle exhaust.
|
| 3627 |
What is air pollution?
-
The presence of harmful substances in the atmosphere.
|
| 3628 |
How can nanotechnology improve crop production?
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Through nano-fertilizers and nano-pesticides for better efficiency.
|
| 3629 |
What is a nano-biosensor?
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A device that detects biological molecules at the nanoscale.
|
| 3630 |
Give an industrial application of nanotechnology.
-
Stronger, lighter materials, water purification, and electronics.
|
| 3631 |
How is nanotechnology used in medicine?
-
For targeted drug delivery, imaging, and diagnostics.
|
| 3632 |
Why are nanoparticles special?
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They have unique physical and chemical properties due to their size.
|
| 3633 |
What is nanotechnology?
-
The study and application of materials at the nanoscale (1–100 nm).
|
| 3634 |
How do vaccines help the immune system?
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By stimulating the body to produce antibodies and memory cells.
|
| 3635 |
What is the advantage of mRNA vaccines?
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They can be developed quickly and trigger strong immunity.
|
| 3636 |
Name the main types of vaccines.
-
Live-attenuated, inactivated, subunit, mRNA, and vector-based vaccines.
|
| 3637 |
What are vaccines?
-
Biological preparations that provide immunity against diseases.
|
| 3638 |
Why are GM crops developed?
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For pest resistance, higher yield, or improved nutrition.
|
| 3639 |
Name an example of a genetically modified crop.
-
Bt cotton.
|
| 3640 |
What are transgenic organisms?
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Organisms that contain genes from another species.
|
| 3641 |
What is DNA fingerprinting used for?
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Identifying individuals in forensics and paternity testing.
|
| 3642 |
What is gene therapy?
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Treating genetic disorders by replacing or repairing faulty genes.
|
| 3643 |
What is genetic engineering?
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The direct manipulation of an organism’s genes using biotechnology.
|
| 3644 |
How can individuals protect their data online?
-
By using strong passwords, antivirus software, and secure connections.
|
| 3645 |
Name one common cyber threat.
-
Phishing attacks.
|
| 3646 |
What is a firewall?
-
A system that blocks unauthorized access to a network.
|
| 3647 |
Why is encryption important for online transactions?
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It secures sensitive data like passwords and credit card details.
|
| 3648 |
What is data encryption?
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Converting information into a code to prevent unauthorized access.
|
| 3649 |
What is cyber security?
-
Protecting computer systems and data from theft or damage.
|
| 3650 |
How is robotics used in industry?
-
For assembly lines, material handling, and hazardous tasks.
|