Arrange the following five zones of the pelagic region of an ocean in the increasing order of its depth from the surface. 1. Mesopelagic 2. Epipelagic 3. Abyssopelagic 4. Bathypelagic 5. Hadopelagic Choose the correct answer from the options given below:

• The pelagic region of the ocean is divided into five distinct ecological zones based on depth and light penetration. These zones are:

Epipelagic Zone (Sunlight Zone)

• Depth: 0 to 200 meters
• Characteristics: This is the topmost layer of the ocean where sunlight penetrates, allowing photosynthesis. It supports the majority of marine life, including fish, plankton, and marine mammals.

Mesopelagic Zone (Twilight Zone)

• Depth: 200 to 1,000 meters
• Characteristics: This zone receives only faint sunlight, making photosynthesis impossible. It is home to a variety of bioluminescent organisms. Temperature drops significantly, and pressure increases.

Bathypelagic Zone (Midnight Zone)

• Depth: 1,000 to 4,000 meters
• Characteristics: Completely dark, this zone hosts organisms that rely on detritus from above or are predators. The temperature is near freezing, and pressure is extremely high.

Abyssopelagic Zone (Abyss)

• Depth: 4,000 to 6,000 meters
• Characteristics: Pitch black and near freezing, this zone has very few organisms, mostly invertebrates like giant squid and deep-sea fish. The pressure is immense.

Hadalpelagic Zone (The Trenches)

• Depth: 6,000 meters and below
• Characteristics: Found in oceanic trenches, this zone has the most extreme conditions of pressure and cold. Only specially adapted organisms, like certain types of amphipods and bacteria, can survive here.