Bioremediation is a process that uses microorganisms to degrade or remove contaminants from polluted sites. It can be performed in-situ or ex-situ, depending on the location of the contaminated site and the type of technology used. Let's analyze each statement given in the question:

1. In-situ bioremediation technology includes bioaugmentation, bioventing, and biosparging.
In-situ bioremediation refers to the treatment of contaminants at the site where they are found, without the need for excavation or removal. The three technologies mentioned are commonly used in in-situ bioremediation:

- Bioaugmentation: This involves the addition of specific microorganisms to enhance the degradation of contaminants. These microorganisms may be naturally occurring or genetically engineered.

- Bioventing: This technique involves the injection of air or oxygen into the contaminated soil or groundwater to enhance the microbial activity and degradation of pollutants.

- Biosparging: It is a similar technique to bioventing but involves the injection of air or oxygen directly into the groundwater to stimulate microbial activity and contaminant degradation.

2. Ex-situ bioremediation technology includes biopiles, bioreactors, and composting.
Ex-situ bioremediation refers to the treatment of contaminated materials that are excavated and removed from the site. The three technologies mentioned are commonly used in ex-situ bioremediation:

- Biopiles: These are engineered structures that contain the contaminated materials and provide optimal conditions for microbial degradation. They are often used for the treatment of contaminated soils.

- Bioreactors: These are containers or tanks where contaminated materials are placed and specific conditions, such as temperature, pH, and nutrient levels, are controlled to enhance microbial degradation. Bioreactors are commonly used for the treatment of contaminated liquids or sludges.

- Composting: This technique involves the degradation of organic contaminants through the action of microorganisms in the presence of oxygen. It is commonly used for the treatment of organic waste materials contaminated with pollutants.

3. It is effective only where environmental conditions permit microbial growth and activity.
This statement is correct. Bioremediation is dependent on the presence of suitable environmental conditions for microbial growth and activity. Factors such as temperature, pH, moisture content, oxygen availability, and nutrient availability can significantly influence the efficiency of bioremediation. If these conditions are not favorable, the microbial activity may be limited, and the effectiveness of bioremediation may be reduced.

In conclusion, all the statements given in the question are correct. In-situ bioremediation includes bioaugmentation, bioventing, and biosparging, while ex-situ bioremediation includes biopiles, bioreactors, and composting. Bioremediation is effective only in environments where microbial growth and activity can occur.