a → b → e → f → d
b → d → f → e → c
d → b → e → c → f
b → a → f → e → c
f → e → c → d → c
Correct answer is C
No explanation has been provided for this answer.
During thunderstorms the energy of lightning discharge causes
oxygen and nitrogen to combine
more carbon dioxide to be formed
nitrites to be converted to nitrates
nitrates to be converted to nitrogen
death
Correct answer is A
No explanation has been provided for this answer.
If a baby is a female, her mother's ovum must have been fertilized by a sperm carry the chromosome
X
XY
XX
YY
Y
Correct answer is A
No explanation has been provided for this answer.
lowest in the tube with clay
the same in all tubes
lowest in the tube with loamy soil
highest in the tube with sandy soil
lowest in the tube with sandy soil
Correct answer is E
No explanation has been provided for this answer.
Ecosystem
Food chain
Food web
Succession
Community
Correct answer is D
No explanation has been provided for this answer.