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Hello,

Is my sentence proper?

The tree height acts as a first barrier that a predator has to pass, but if it pass it, a predator will face with stinging wasps as a second barrier.

Thank you for your response.
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face the wasps or come face to face with the wasps.

Not face with the wasps.

Why are you calling the predator "it". Is it a robot?

if it/he passes it.

CJ
Comments  
Sorry, I can't understand what you mean. Emotion: sad In English , we use it for words like child, cats, and a predator.
For example, the bird builds its nest on a tree close to the wasps' nest.So, the height of a tree is a first barrier for the cat and if it(a cat) passes it( the barrier), it ( a cat) will face stinging wasps.