What happen to temperature & pressure as you go deeper into the earth

Both temperature and pressure increase as you get closer to the Earth's centre.

Explanation:

The pressure increases as you go deeper because there is always more weight from above.

The pressure goes from 1 atm at the surface to 3.5 * 10⁶ atm in the core.

The core is hot because of

residual heat from when the Earth was formed the energy released by decay of radioactive elements.

Here's a table of approximate temperatures in the various layers.

Layer T/°C

Crust 300

Upper mantle 1300

Lower mantle 3300

Outer core 4500

Inner core 6000

The temperature and pressure increases as you go deeper into the earth.