What are the greatest threats to wildlife and hazards from ozone depletion, and examples of landforms?

Here are the solutions to the questions:

32. The greatest threat to the world's wildlife population is
The primary cause of species extinction and decline in wildlife populations globally is the destruction and fragmentation of their natural habitats due to human activities such as deforestation, agriculture, urbanization, and infrastructure development.
The correct option is C.
The greatest threat to the world's wildlife population is $\boxed{\text{C. The destruction of habitats}}$.

33. A hazard that could be traced directly to ozone layer depletion is the
Ozone layer depletion leads to an increase in the amount of harmful ultraviolet (UV) radiation, specifically UV-B, that reaches the Earth's surface (troposphere). This increased UV radiation poses various hazards to human health (e.g., skin cancer, cataracts) and ecosystems.
The correct option is B.
A hazard that could be traced directly to ozone layer depletion is the $\boxed{\text{B. Introduction of ultra violet rays into the troposphere}}$.

34. An example of a landform produced by glaciation is
Glaciation refers to the processes involving glaciers.

• A sand-dune is formed by wind.
• An Inselberg is formed by differential erosion, often in arid regions.
• An ox-bow lake is formed by meandering rivers.
• A cirque (also known as a corrie or cwm) is a bowl-shaped depression with steep sides, formed by glacial erosion at the head of a glacial valley. The correct option is B. An example of a landform produced by glaciation is $\boxed{\text{B. A cirque}}$.

35. The Vertical section of the soil from the surface down to the bedrock, showing different layers, is known as soil
A soil profile is a vertical cross-section of the soil that reveals its distinct layers, called horizons, from the surface down to the parent material or bedrock.
The correct option is A.
The Vertical section of the soil from the surface down to the bedrock, showing different layers, is known as soil $\boxed{\text{A. Profile}}$.

36. Which of the following are the correct stages of denudation?
Denudation is the general term for the processes that cause the wearing away of the Earth's surface. The correct sequence of these processes is:

1. Weathering: The breaking down of rocks and minerals at or near the Earth's surface.
2. Erosion: The removal of weathered material by agents like wind, water, or ice.
3. Transportation: The movement of eroded material from one place to another.
4. Deposition: The settling and accumulation of transported material. The correct option is B. The correct stages of denudation are $\boxed{\text{B. Weathering - erosion - transportation - deposition}}$.