Question

21. Simulations of the 20th century by
climate models that exclude the
observed increase
greenhouse
gases fail to simulate the increase in
temperature over the second half of the
20th century.
(a) of
(b) in
(c) by
.(d) to​

Answer 1

what do we have to do in this question

pls subscribe my channel Nishka Shah which has 17 subscribers and is a new channel