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What are heavy metals and why are they considered serious pollutants in the environment?
What are heavy metals and why are they considered serious pollutants in the environment?
Heavy metals are defined as those having a specific density of more than 5 g/cm3. They are considered serious pollutants due to their toxicity, persistence, and bioaccumulation problems.
Which of the following is a characteristic of heavy metals?
Which of the following is a characteristic of heavy metals?
- They are visible pollutants in the environment
- They have a specific density of less than 5 g/cm3
- They can accumulate in the environment unnoticed to toxic levels (correct)
- They are not toxic to living organisms
Apakah yang dimaksudkan dengan logam berat dan mengapa mereka dianggap sebagai pencemar serius dalam alam sekitar?
Apakah yang dimaksudkan dengan logam berat dan mengapa mereka dianggap sebagai pencemar serius dalam alam sekitar?
What are some essential heavy metals that organisms require, and what are the risks of excessive levels of these metals?
What are some essential heavy metals that organisms require, and what are the risks of excessive levels of these metals?
What are some of the essential heavy metals that organisms require in trace amounts?
What are some of the essential heavy metals that organisms require in trace amounts?
Apakah jenis-jenis logam berat yang menjadi keprihatinan khusus dalam sistem air permukaan dan mengapa?
Apakah jenis-jenis logam berat yang menjadi keprihatinan khusus dalam sistem air permukaan dan mengapa?
Which non-essential heavy metals are of particular concern to surface water systems?
Which non-essential heavy metals are of particular concern to surface water systems?
Apakah perbezaan antara logam berat yang diperlukan oleh organisma dan logam berat yang dianggap sebagai pencemar serius dalam alam sekitar?
Apakah perbezaan antara logam berat yang diperlukan oleh organisma dan logam berat yang dianggap sebagai pencemar serius dalam alam sekitar?
What are some non-essential heavy metals that are of particular concern to surface water systems, and why are they concerning?
What are some non-essential heavy metals that are of particular concern to surface water systems, and why are they concerning?
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