All of the following are physical changes except.. 1. chewing food
2. mixing sugar with water
3. mixing saliva with starch
4. peristalsis

Genetic diversity is the variation in the genes of an entire species. each circle represents a population of a particular species in different habitats. select the population with maximum genetic diversity

Study this image which statement best describes the rock shown check all that apply

Which short-term environmental change is most likely to lead to ground shifting, landslides, and the collapse of buildings or roads? forest fires flooding earthquakes