How the environment removes gas from an example satellite. For an example gas-poor satellite today of mass $M_{\star }^{\mathrm{sat}}(z=0)\approx {10}^{10.9}{M}_{\odot }$ in a cluster of mass $M_{200\mathrm{c}}^{\mathrm{host}}(z=0)\approx {10}^{15.0}{M}_{\odot }$, we study the time evolution of the gas radial profiles since first infall (τ_FirstInfall ≈ 8.6 Gyr i.e., look-back time ≈5 Gyr) until it becomes gas-poor today. The cumulative environmental effects, namely the integrated ram pressure since infall, and secular processes, namely feedback from the SMBH, remove the satellite’s gas, leaving a gas-poor, quenched satellite today.