The relationship between the frog and the insects is a
relationship. If the number of frogs in the ecosystem decreased because of human activity, there’s a possibility that .

The relationship between the frog and the insects is a predator-prey relationship. If the number of frogs in the ecosystem decreased because of human activity, there's a possibly that the number of insects might increase.

Explanation:

In this controlled ecosystem, frogs naturally prey on insects. If there were to be less frogs in the ecosystem, the number of insects might increase because there are fewer frogs to hunt them.

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.