Which contains dozens of carcinogens? sunlight tobacco smoke asbestos

All three factors asbestos, tobacco smoke, and sunlight has carcinogens and they show effects at various levels.

For example, High sunlight in mid day may emits uv rays which are carcinogenic and leads to skin cancer.

Whereas, Tobacco smoke leads to lung cancer, mouth cancer, throat cancer etc..

While Asbestos causes lung, larynx, ovarian cancers etc..

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.