THIS IS THE THIRD ASKING thIS QUESTION
only number 3

3.) The giraffe has adapted by it's neck length increasing to reach the branches

4.) Biotic factors

Explanation:

QUESTION 3: Due to the leaves growing towards the top of tree rather than around, the giraffes neck length impacts the access to the leaves, so they have adapted by increasing their neck length.

QUESTION 4: Giraffes and trees are both living things, therefore they are biotic factors.

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)