No, Earth science is not the major branch that deals with living things. That would be biology.

Here's why:

* Earth science focuses on the non-living components of our planet. This includes things like:

* Geology (rocks, minerals, and the Earth's structure)

* Meteorology (weather and climate)

* Oceanography (oceans and marine life)

* Astronomy (planets, stars, and the universe)

* Biology is the study of all living organisms, including their structure, function, growth, evolution, and distribution.

While Earth science and biology have overlapping areas, like the study of ecosystems, biology is the primary discipline dedicated to the study of life.