Which soil horizon is known as the zone of leaching?
a. A
b. B
c. C
d. D
e. O
A
Environmental & Atmospheric Sciences
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Which of these Latin American artist's paintings are known around the world
A. Mario Vargas Llosa B. Derek Walcott C. Frida Kahlo D. Gabriel Garcia Marquez
Environmental & Atmospheric Sciences
The Maori are the indigenous peoples of:
A) Samoa. B) Iceland. C) Tonga. D) New Zealand. E) Sierra Leone.
Environmental & Atmospheric Sciences
Which of the following functional groups does not contain a carbonyl group?
A) ester B) alcohol C) aldehyde D) ketone
Environmental & Atmospheric Sciences
How many valence electrons does boron (B, atomic no. = 5 ) have?
A) 1 B) 2 C) 3 D) 4 E) 5
Environmental & Atmospheric Sciences