Q. Consider the following factors influencing the growth of vegetation:

1. Temperature
2. Moisture
3. Thickness of soil

Which of the above factors play a role in the growth of vegetation?
Answer: 1, 2 and 3
Notes: Temperature and moisture are key environmental determinants for vegetation growth, directly affecting physiological processes. Thickness of soil additionally impacts root penetration and nutrient access, thus influencing vegetation types and distribution. Collectively, temperature, moisture, and soil thickness are critical for the growth, distribution, and density of natural vegetation.