input: OPTIONS:
- relocation
- the loss of topsoil
- Plant growth is reduced
- to move people
- Physical weathering
- forest is destroyed
- Water expanding
- water conservation Now, answer this question: You are presented with the quiz "Deepening rivers cause" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "erosion causes a river to become deeper and wider" and "fertile topsoil is then lost in erosion". So, what's the best answer to the question?
A:
output: the loss of topsoil
You are presented with the quiz "What promotes the division of cells with damaged DNA?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "oncogenes promote the division of cells with damaged DNA" and "oncogenes An oncogene is a gene that is capable of causing cancerous change". So, what's the best answer to the question?

OPTIONS:
- PDAs
- chemicals
- smoking
- lmestone
- A drug.
- acid rain
- bacteria
- cancer

Answer: cancer
Problem: OPTIONS:
- Converts oxygen
- nutrients
- Converts h2o
- Converts nitrogen
- Regrows it
- hydrate their cells
- Converts methane
- competing for resources
Q: You are presented with the quiz "What does rhizobial bacteria do for plants?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "bacteria in soil convert atmospheric nitrogen into a form usable by plants" and "rhizobial bacteria convert atmospheric nitrogen into nitrate fertilizers in a form usable by plants". So, what's the best answer to the question?
Answer: Converts nitrogen
Problem:OPTIONS:
- embryos
- salmon
- semen
- fusion
- Flowers
- seeds
- Energy
- eggs

You are presented with the quiz "What goes from male to female reproductive organs for fertilization?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sperm had to swim from male to female reproductive organs for fertilization" and "what semen is, is a carrier for the sperm contained in it". So, what's the best answer to the question?
****
A: semen
You are presented with the quiz "what flows in a circuit?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "when an electrical circuit is working properly , electrical current runs through that circuit" and "an electrical current is the flow of electric charge". So, what's the best answer to the question?
OPTIONS:
- rivers
- heat
- nerves
- energy
- waves
- cycles
- arteries
- charge
charge
You are presented with the quiz "What is a major food source for humans?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mollusks are a major food source for other organisms, including humans" and "mollusks are invertebrates and are no exception". So, what's the best answer to the question?
OPTIONS:
- poison dart frogs
- honeybees
- barnacles
- intervertebrates
- other humans
- photosynthesis
- the body's largest organ
- Most plants

Answer:
intervertebrates