Connecting link between reptiles and birds is
Options
(a) Dodo (b) Sphenodon (c) Dimetrodon (d) Archaeopteryx
Correct Answer:
Archaeopteryx
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Energy enters ecosystem through
Options
(a) herbivores (b) carnivores (c) producers (d) decomposers
Correct Answer:
producers
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Crop rotation is used by farmers to
Options
(a) increase soil fertility (b) increase N₂ content of soil (c) increase organic content of soil (d) increase community are
Correct Answer:
increase soil fertility
Nitrates are converted into nitrogen by
Options
(a) denitrifying bacteria (b) carbon fixing bacteria (c) nitrogen fixing bacteria (d) phosphorus fixing bacteria
Correct Answer:
denitrifying bacteria
Explanation:
No explanation available. Be the first […]
During photosynthesis, which of the following reaction occurs
Options
(a) oxidation of CO₂ (b) reduction of H₂O (c) oxidation of H₂O (d) reduction of NH₃
Correct Answer:
oxidation of H₂O
Explanation:
No explanation […]
2017 Copyright Doctor Dreams Training Academy