1.
Which of the following is the correct order for a simple food chain?
2.
Symbiosis is a relationship between the members of
3.
Burning of petroleum produces
4.
The process in which inorganic nutrients are enriched with water is called
5.
Considering the Earth's ecosystem, the consumers are classified as
6.
The hydrocarbons (alkanes and alkenes), oxides of nitrogen (NO, NO2) and Sulfur (SO, SO2, SO3) and fluorine (F2) are released by the
7.
The lakes and forests are best classified as examples of
8.
The minerals are used as nutrients by
9.
Where does Rhizobium live?
10.
The main component of many biomolecules is
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