Land degredation is a major issue worldwide and poses a threat to the sustainability of agriculture and economic development of many third world countries. which answer choice is not a form of land degredation that needs to be addressed? a) wind and wave erosion in coastal regions. b) water erosion from run-off in mountainous regions. c) water erosion during the rainy season in semi-arid regions d) the reclamation of land at the mouths of rivers formed by silt deposits

Why is a dominant allele called dominant

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%