Which of these is most likely to produce heavy metal waste? a. leather tannery b. medical center c. paper mill d. oil refinery

Option A, Leather tannery

Explanation:

In a leather industry, chromium is one of the heavy metals that are used in large amount.  

Along with tannery, Chromium is also used in electroplating, and metallurgical industries.  

The water coming out of these tannery has high content of chromium ion (Cr6+) generally ranging between 100–200 mg/L. This chromium rich water needs sufficient treatment before discharge or else it would cause bio magnification effect

Hence, option A is correct

earthquakes in florida are rare because the state is not located near any tectonic plates. in fact, florida is tied for first place as having the fewest earthquakes of any state. much of florida is limestone and seafloor materials that is not conducive to earthquakes.

explanation:

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.