Which is an example of a physical change? A)
Mixing blue and yellow paint to create green paint
3)
Adding water and yeast to bread dough in order to make it raise
Mixing two liquids together in a test tube and the tube becoming warm
D)
Adding a piece of chalk containing calcium carbonate to a glass of mild
acid causing the formation of a foam of bubbles.

1.the evidene of the reaction

2.yes

3.yes

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

i need an image of the diagram

b. lithosphere, asthenosphere, mesosphere   is the answer most likely