Q: Planting a row of trees around a field or erecting a fence on a sand dune helps prevent what form of erosion? Choices: - fire - water - rain - wind A:
wind

Q: In artificial passive immunization, which items from an immune animal are injected into a nonimmune animal? Choices: - parasites - platelets - allergies - antibodies A:
antibodies

Q: Q: One gram of proteins provides how many calories of energy? Choices: - eight - zero - two - four A:
A: four

Question: Q: Experiments have shown that acceleration is exactly inversely proportional to mass, just as it is exactly linearly proportional to what? Choices: - net internal force - speed - kinetic energy - net external force A:
Answer: net external force

*Question*
Q: What occurs when there is a sudden discharge of static electricity between a cloud and the ground? Choices: - updraft - wind - rain - lightning A:
**Answer**
lightning

Q: Q: What phase follows ovulation? Choices: - interstitial phase - telophase - varicose phase - luteal phase A:
A: luteal phase