Many processes occur in the digestive system. Which process is best classified as a physical change? Saliva converting the starch molecules in crackers into simple sugars
Digestive enzymes breaking down proteins into smaller fragments
Bacteria converting lactose into simple sugars in the intestines
Teeth grinding an almond into smaller pieces in the mouth

Maybe digestive enzymes breaking down proteins into smaller fragments

Explanation: I would say this is the correct answer because the protein provides nutrition to the body.

Teeth grinding an almond into smaller pieces in the mouth

Explanation:

The others all use a chemical to produce a different outcome. The teeth answer uses the teeth to make the almond smaller, its not changing the almond, it is still an almond so it would just change it physically not chemically like the others.

the statement is true

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.