Which of the following is an abiotic limiting factor for a plant population in an ecosystem?

Invasive weed species

Seed dispersal by wind

Availability of soil minerals

Disease-causing fungal spores

Correct answer is Availability of soil minerals.

There are two types of limiting factors that affect plant population in a ecosystem. They are:

Biotic Abiotic

Biotic factors includes food, diseases etc. Such as Invasive weed species, seed dispersal by wind, disease-causing fungal spores are examples of biotic limiting factor.

Abiotic factors include sunlight, temperature and chemical environment. The availability of soil mineral is an example of abiotic limiting factor. Growth of plant population depends on availability of soil minerals.

Correct answer is Availability of soil minerals.