UPSC Daily Quiz for 8ᵗʰ July 2026

1) With reference to the Zebra Finch (Taeniopygia guttata), consider the following statements:

1. It is a widely used model organism for studying vocal learning.
2. Juvenile males acquire songs primarily through imitation of an adult tutor.
3. It is one of the few birds capable of echolocation.

Which of the statements given above are correct?

2) Which one of the following best explains the advantage of combining Electro-Optical (EO) and Synthetic Aperture Radar (SAR) sensors on the same Earth observation satellite?

3) With reference to Section 301 of the US Trade Act, 1974, consider the following statements:

1. It empowers the United States to take unilateral trade measures against countries alleged to have unfair trade practices.
2. Action under Section 301 necessarily requires prior approval of the World Trade Organization (WTO).
3. It is administered by the United States Trade Representative (USTR).

Which of the statements given above are correct?

4) With reference to Synthetic Aperture Radar (SAR), consider the following statements:

1. It is an active remote sensing system.
2. It can acquire imagery during both day and night.
3. Its performance is significantly affected by cloud cover.

Which of the statements given above are correct?

5) Among vertebrates, vocal learning—the ability to acquire vocalisations by imitating others—is known to occur naturally in which of the following groups?

1. Songbirds
2. Parrots
3. Hummingbirds
4. Cetaceans
5. Primates (excluding humans)

Select the correct answer using the code below: