Here's what other scientists say about Morris's work:-

In Evolution & the Modern Christian (1967), Morris hoped to "open the minds and hearts of young people to the true Biblical cosmology." T.E. Fenton, Professor of Agronomy at Iowa State University, wrote "scientific value of the book is nil; the author selectively chooses the areas of science that he accepts and rejects other areas of accepted science".[22] David Vogel, Professor of Biology at Creighton University, reviewed the book explaining "his theology is shallow; his exegesis is maddening; his science is wrong; and he tops it off by offending millions of Bible-believing Christians who also accept evolution".[23]

Morris' book Scientific Creationism (1974 and 1984), according to Herman Kirkpatrick, "is not very convincing evidence to support the recent creation of the earth".[24] Thomas Wheeler, Professor of biochemistry at University of Louisville, reviewed the second edition and concluded, "Scientific Creationism cannot be recommended for use in public school classes, or indeed anyone interested in learning science".[25] Wheeler cited what he claimed was Morris' misunderstanding of science, appeals to religious prejudice, misrepresentation of scientific knowledge, omission of opposing science, double standards in evidence, "absurd conclusions," inappropriate and misidentified sources, attacks on scientists, using discredited arguments, and "silly calculations".[19]

Morris' work with John C. Whitcomb, The Genesis Flood, has been criticized for taking quotes out of context and misquoting sources.[26] For example, in one instance, a source which read "the sea which vanished so many million years ago" was quoted as "the sea which vanished so many years ago."[26] Geologist John G. Solum has criticized the work for being inaccurate.[27] Solum said "Whitcomb and Morris are mistaken about the nature of the rocks associated with thrust faults. Their claim about fossils is based on a Young Earth creationist misunderstanding of how rocks are dated relative to each other, and how the geologic column was constructed."[27] Additionally, Solum said "Morris' explanation of relative dating is not merely 'somewhat oversimplified' - it is entirely incorrect."[27]

https://en.wikipedia.org/wiki/HenryM.Morris