1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one of the following statements is not valid for aerosols ?
A
They alter rainfall and monsoon patterns
B
They have negative impact on agricultural land
C
They cause increased agricultural productivity
D
They are harmful to human health
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
The vascular cambium normally gives rise to :
A
Primary phloem
B
Secondary xylem
C
Periderm
D
Phelloderm
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Which of the following is made up of dead cells ?
A
Collenchyma
B
Xylem parenchyma
C
Phellem
D
Phloem
4
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Identify the wrong statement in context of heartwood :
A
It is highly durable.
B
It comprises dead elements with highly lignified walls
C
It conducts water and minerals efficiently
D
Organic compounds are deposited in it
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12