Frog reproduction typically involves a female frog releasing her eggs into the environment and a male frog covering the eggs with a sperm solution. The eggs then swell and develop into tadpoles that hatch directly into their environment
Frog reproduction involves a type of

The correct answer is - external fertilization.

Explanation:

It is the contrasting fertilization process to internal fertilization as external fertilization takes place outside of the female body where eggs released in surrounding environment of the female and fused with sperms released by the male.

In frogs, the type of fertilization is the external fertilization process where the female frog released her eggs in water and sperm solution covers the eggs and fertilizes them.