Read the following statements and state them as true (T) or false (F).
A. If ${\mathrm{CO}}_2$ concentration increases up to 0.05%, the rate of photosynthesis increases.
B. The ${\mathrm{C}}_3$ and  ${\mathrm{C}}_4$ plants respond similarly to  ${\mathrm{CO}}_2$ concentration.
C. ${\mathrm{C}}_3$ plants respond to high temperature and show higher photosynthetic rate.
D. Light is less sensitive than temperature for dark phase 

	A	B	C	D
1.	T	F	F	T
2.	T	F	F	F
3.	F	F	F	F
4.	F	F	T	T

• A

  1

• B

  2

• C

  3

• D

  4