With reference to environment and ecology, consider the following statements regarding the concept of 'Biodiversity Hotspots' and the various dimensions of ecological pyramids:

1. 1. British environmentalist Norman Myers propounded the concept of 'Biodiversity Hotspots' in 1988, under which declaring an area as a hotspot requires a minimum of 1,500 endemic plant species and the loss of at least 70% of the region's original primary vegetation.
2. 2. Out of a total of 36 globally recognized biodiversity hotspots, four are located fully or partially in India, which are the Western Ghats, Eastern Himalayas, Indo-Burma region, and Sundaland.
3. 3. In an aquatic ecosystem, the pyramid of biomass is always inverted because the total biomass of phytoplankton is considerably less than that of small fishes and aquatic organisms.
4. 4. The pyramid of energy in an ecosystem is always upright, representing the first law of thermodynamics which states that energy is lost at each trophic level.

Which of the above statement(s) is/are fully correct?