It's not accurate to talk about "gravity levels" on Earth because gravity is a force, not a level. However, we can talk about the strength of Earth's gravity at different locations.

Here's what you need to know:

* Earth's gravity isn't uniform. It varies slightly depending on factors like altitude, latitude, and the density of the underlying rock.

* Standard gravity is a reference value used for calculations. It's defined as 9.80665 m/s² (meters per second squared) at sea level and 45 degrees latitude. This is the value most people use when discussing Earth's gravity.

* The strength of gravity decreases with altitude. This means that if you were to climb a mountain, you would experience slightly weaker gravity than at sea level.

* Gravity is also slightly weaker at the equator than at the poles. This is due to the Earth's rotation.

So, while there isn't a single "gravity level" on Earth, we can say that the average strength of gravity is about 9.81 m/s², with some variation depending on location.