The practice of warming soup regularly as a means to preserve food is essentially to
retain the taste
help break down cellulose
remove excess water
kill the bacteria in it
raise the temperature
Correct answer is D
No explanation has been provided for this answer.
I and II only
II and V only
III and IV only
II and IV only
III and V only
Correct answer is D
No explanation has been provided for this answer.
Predators are beneficial in pest control because they
are natural enemies of small mammals
devour farm animals
feed on crop pests
prey on game animals
compete for food with the pests
Correct answer is C
No explanation has been provided for this answer.
Succession is best described as
a process whereby organisms systematically colonize a barren habitat until a stable community is formed
a process whereby plants occupy a barren habitat until a suitable habitat is formed
a process whereby animals occupy a barren habitat until a suitable habitat is formed
the subsequent taking over of the land through emigration or seeds dispersal
the replacement of weaker plants and animals by stronger ones
Correct answer is A
No explanation has been provided for this answer.
Which of the following may not contribute to environmental pollution?
Solar energy radiation
Industrial waste
Waste disposal
Smoke
Nuclear power plant
Correct answer is A
No explanation has been provided for this answer.