A wildfire fueled by extreme winds burns thousands of acres of croplands, decimating many fields, trees, and structures in the area. Which of the following strategies should farmers implement as sustainable practice(s) to promote soil conservation? i. Utilize standing tree lines as windbreaks for farms
ii. Avoid adding manure to burn areas to prevent phosphate buildup i
iii. Encourage nutrient distribution by controlled flooding of farmlands

I only
II only
I and II only
I and III only

Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.