Geography
An excess of ……………. in plants and animals is toxic.
- iron
- magnetite
- manganese
- haematite
Related Questions
You had gone to visit your aunt at Visakhapatnam where you saw large containers being shipped. On enquiring you are told it is an ore of a metal. Which ore is it?
- Iron
- Manganese
- Copper
- Bauxite
Name the mineral needed to regulate blood sugar levels and to support the immune system.
- Manganese
- Iron
- Mica
- Copper
…………… is essential for plant growth and reduction of nitrates in green plants.
- Mica
- Iron
- Manganese
- Copper
……………. is the earliest metal used by man.
- Iron
- Manganese
- Bauxite
- Copper