Q: This process breaks rocks and other surface materials into much smaller pieces? A:

OPTIONS:
- corrosion
- leaching
- chemical reaction
- weathering

Answer: weathering

Problem: OPTIONS:
- potassium membranes
- sodium membranes
- cell walls
- plasma membranes
Q: Q: Sodium-potassium pumps help nerve cells establish a voltage across their what? A:
Answer: plasma membranes

Problem:OPTIONS:
- pollination
- mitosis
- reproduction
- photosynthesis

Q: What important process takes place in specialized tissue inside plant leaves? A:
****
A: photosynthesis

Q: The electron released during beta decay is not an orbital electron but an electron whose origin was where? A:
OPTIONS:
- outside the nucleus
- connected to the nucleus
- orbiting the nucleus
- in the nucleus
in the nucleus

Q: What helps form the walls of internal organs such as the heart and stomach? A:
OPTIONS:
- blood
- tissues
- valves
- muscles

Answer: muscles

input with options: Q: Which action of the stomach helps chemical digestion by gastric juice? A:
OPTIONS:
- peristalsis
- chewing
- contraction
- churning action
output:
churning action