What is the relationship between coronary artery disease and a heart attack?

Heart attack is when a coronary artery gets block, thus stopping blood supply to part of the heart that coronary artery supply.

Coronary artery disease is a collection of coronary blockage disease that causes heart failure.

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.