What flag has the colours red yellow and green?

South America: Bolivia, Suriname, Guyana.

Africa: Benin, Burkina Faso, Cameroon, Guinea, Central African Republic, Mauritius, Ghana, Guinea-Bissau, Ethiopia, Senegal, Togo, Republic of the Congo, Mozambique, Zimbabwe, Namibia, Eritrea, Zambia, South Africa & Mali.

Europe: Turkmenistan, Lithuania, Tajikstan & Portugal

Islands: Sao Tome & Principe, Vanuatu, Seychelles, St. Kitts, & Nevis, Comoros, & Prince Edward Island

North America: Saskatchewan, Alberta