Problem:OPTIONS:
- speed
- Joules
- Energy.
- Weight
- size
- density
- toughness
- energy

You are presented with the quiz "What does gravity's pull determine about an object?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "gravity causes objects that have mass to be pulled down on a planet" and "weight is the product of an object's mass and the acceleration due to gravity". So, what's the best answer to the question?
****
A: Weight

Problem:OPTIONS:
- hyperthyroidism
- heat energy
- permineralization
- acceleration
- flow of electrons
- friction
- kinetic energy
- chemical reaction

You are presented with the quiz "What can result when force acts on a moving object?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "force causes the speed of an object to increase" and "acceleration is the increase in speed or velocity over a period of time". So, what's the best answer to the question?
****
A: acceleration

Problem:OPTIONS:
- loss
- pregnancy
- gene flow
- symptoms
- reduction
- growth
- shrinkage
- sperm

You are presented with the quiz "Mitosis often causes what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cell division often causes growth" and "cytology Cell division Cells proliferate by mitotic division". So, what's the best answer to the question?
****
A: growth

Problem:OPTIONS:
- harm
- nitric oxide
- rust
- Lead
- acid
- glycogen
- genetic engineering
- DDT

You are presented with the quiz "Eating food that contains _ can have a negative impact on humans." But you don't know the answer, so you turn to your teacher to ask for hints. He says that "eating food that contains pesticides can have a negative impact on humans" and "all pesticides that contain DDT are dangerous pesticides". So, what's the best answer to the question?
****
A:
DDT