Question

The factors that influence the growth of natural vegetation are:
(a) Type of land
(b) Temperature
(c) Precipitation
(d) All of these

Answer 1

Hint:The vegetation which is not processed and developed by the humans is natural vegetation. It is not touched by humans in its original form. Its growth depends upon various environmental factors.

Complete answer
The natural vegetation is the area that is on its own without any interference from the humans. It depends upon the various environmental factors that mainly include the relief and the climate. The land and soil come under the category of relief while the sunlight, temperature, rainfall, humidity, precipitation, etc come under the category of climate.
The factors that influence the growth of natural vegetation are as follows:
Water: It is the most important factor for the growth of the plants and the vegetation. When the amount of water is less the plants will show various adverse effects and will have less growth.
Light: It is also an important factor that influences the various processes of the plants. The intensity and the quality of the light along with the amount of duration change the growth and development of plants.
Soil nutrients: Soil plays a major role in providing plants with various required nutrients for their proper growth. The plant growth depends upon the quantity and the quality of the nutrients.
Temperature: When the amount of temperature is increased it is observed that the growth rate is also increased.
Plant growth hormones: They differ depending upon the various plants. There are various types of growth regulators that include mainly auxin, cytokine, gibberellin, abscisic acid, ethylene, etc.

So, the correct answer is ‘All of these’.

Note:
The natural vegetation is of various types depending upon their natural habitat and environmental conditions. These natural vegetations include the tropical evergreen, wet deciduous, dry deciduous, mountain forests, desert, and mangrove forests.