Are you ready to think „on the surface" in a sustainable way?

Demonstrate your skills when it comes to sustainability, environment and climate protection!
Among all quiz participants we will give away:

1st prize
OptiSense shopping coupon worth 333,- Euro

2nd-3rd prize
One CO2 climate tree each

4th-10th price
Guide book "50 einfache Dinge, die Sie tun können, um die Welt zu retten. Und wie Sie dabei Geld sparen"