The seeds of conifer trees are found in ________
A) shoots B) cones C) tissue D) flowers E) roots
B
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Which of the following is true of the types attractive forces present in the three states of matter?
A) They are different in each of the three states. B) They are the same in each of the three states. C) They are the same in gases and liquids, but different in solids. D) They are the same in liquids and solids, but different in gases.
What kind of lake was Lake Agassiz in this image?
A) Kettle lake B) Proglacial lake C) Pluvial lake D) Tarn
Many environmental advocates believe that biofuel made from palm oil is NOT an appropriate replacement for fossil fuels such as petroleum because ________
A) oil palm plantations take land away from coffee growers B) burning palm oil actually puts more carbon dioxide into the atmosphere than burning gasoline C) human rights are being violated because of the palm oil slave trade D) tropical forests must be cleared to plant oil palms E) it is better to use palm oil in snack foods
Earthworms ________
A) literally "suck" nitrogen out of the soil B) are not able to eat microorganisms C) usually guarantee the soil will be poorly productive D) are most numerous in arid climates E) increase soil porosity