Around 3000 B.C., which crop was cultivated in ancient Egypt?
melons
General anesthesia was first used in
A. 1804
B. 1880
C. 1871
D. 1810
A. 1804
True or False: What effect has selective breeding had on tomatoes? Their skins became thinner.
FALSE! Their skins became thicker
The life raft was invented by
A. Mary Anderson
B. Margaret E. Knight
C. Momofuku Ando
D. Maria Beasley
D. Maria Beasley
How much less water do hydroponic farms use compared to traditional farms?
20 times less
Victor Ochoa's electric brake made a big difference in
A. elevators and escalators
B. large trucks and trailers
C. automobiles
D. public transportation
D. public transportation
What is the main focus of “What’s for Dinner?”
A. Declining food production
B. Changes in the foods we eat
C. Dinner choices from different countries
B. Changes in the foods we eat
When farmers choose parent plants of different varieties, the result is a ___.
A. selective crop
B. baby crop
C. hybrid crop
D. breeding crop
C. hybrid crop