Environmental System

Who proposed the continental drift theory?

• Abraham Ortelius                

• Antonio Snider Pellegrini

• Alfred Wegener

• Clarence Dutton

Continental drifting was evidently observed during the ____________ period.

• Permian         

• Jurassic          

• Triassic

• Cretaceous

In which of following plate boundaries does the San Andreas Fault belong to?

• Convergent

• Divergent      

• Transform

• Seismic

In which of following plate boundaries does the Mid-Atlantic Ridge belong to?

• Convergent

• Divergent      

•  Transform

• Seismic

The relationship in which one organism is helped and the other is harmed is known as

• commensalisms       

• mutualism     

• parasitism

• symbiosish

Butterfly pollinating a flower is an example of ___________.

• commensalisms                   

• mutualism     

• parasitism

• predation

The organism that is harmed and which harbors the parasite is the _______.

• host    

• prey

• victim

• predator

It occurs when one organism benefits from the interaction, while the other one does not and is neither harmed nor affected.

• commensalisms                   

• mutualism     

• parasitism

• symbiosis

They are the final consumer because they feed on dead remains of plants and animals.

• decomposer

• herbivores     

• carnivores

• omnivores.

In Predation interaction, the organism that is harmed is called __________.

• host                

• prey   

• victim

• predator