Zero, First and Second conditional

We use the zero conditional to talk about:

For zero conditional we use:

In the zero conditional does the sentence always begin with "if"

When do we use a comma with conditional sentences?

Complete the zero conditional sentence:

If it's sunny people often ------ to the beach.

(a)  

Complete the zero conditional sentence:

If you don't water plants they -----.

(a)  

We use the first conditional to talk about:

The "if" clause in the first conditional uses the:

The result clause in the first conditional uses the:

Complete this first conditional sentence:

If we cut down more trees, the forests ---- disappear.

(a)