EOLOGICAL Time Scale represents:
A.Chronological order of earth’s history
B.Evolution of life
C.Origin of life
D.None of these
Author: BILAL KHATTAK
Practical value of most social inventions can be determined only by_______________?
A.rejecting them
B.accepting them
C.destroy them
D. non of these
Rocks which are formed by the solidification of lava, are:
A.Basalts
B.Sandstone
C.Limestone
D.Granites
As people gets older, the ability of applying or maintain attention_____________??
A. increases
B. decreases
C. stays constant
D. remains unaffected
For the same maximum pressure and heat input the least efficient cycle is
A.Brayton
B.Otto cycle
C.Diesel cycle
95% of the cytoplasm of RBCs is____________??
A. Hemoglobin
B. Enzymes
C. Salts
D. Other proteins
All of the following pollutants affect heart EXCEPT :
A.Cadmium
B.Arsenic
C.Lead
D.Carbon monoxide
A Carnot refrigerator operates between 300.3 K and 273 K. The fraction of cooling effect required as work input is
A.20%
B.10%
C.50%
D.Not possible to find with the data
A symbiotic association between fungus and roots of higher plants is known as:
A.Lichen
B.Mycorrhiza
C.Mutualism
D.None of these
Total sulphur content in a diesel fuel oil must not exceed
A.1%
B.0.50%
C.0.10%
D.0.05%
E.0.01%
