Which among the following is an apex body under Panchayati Raj?

Which among the following is / are correct statements?

1. The images produced by Concave Mirrors are always real images
2. The images produced by Flat Mirrors are always virtual images
3. Converging Lens can produce virtual as well as real images

Select the correct option from the codes given below:

Consider the following differences between 4G and 3G networks:

1. While 3G use LTE technology, 4G uses HSPA technology.
2. HSPA technology has higher uplink and downlink speed compared to LTE.

Which of the above statements is/are correct?
 

A pressure cooker on a stove with its lid tightly closed and the whistle in position is an example of:

Consider the following statements regarding Bramble Cay Melomys, which was seen recently in news:

1. It is categorized as vulnerable species by IUCN
2. It is mainly found in Western Ghats

Which of the above statements is/are correct?