A farmer plants a crop in a field. Suggest a reason why the nitrate concentration of the soil will change during the growing season in that field

According to https://www.bbc.co.uk/bitesize/guides/zsfkv9q/revision/5

" Farmers often grow crops such as peas, beans or clover as these crops can form nitrate, as they have nitrogen-fixing bacteria in their roots. This will increase the nitrate content and fertility of the soil. Crop plants will take in the nitrate and use it to make proteins for growth."

Explanation: I hope it helps! :)

one would be wind another would be water density

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse