Question

Birbal Sahni was related to which field of Science?
(A) Chemical Science
(B) Paleo-botany
(C) Physics
(D) Computer Science

Answer 1

Hint: In order to answer this question, you must know about the various fields of Science. Chemical Science is the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. Paleo botany includes the study of terrestrial plant fossils, as well as the study of prehistoric marine photoautotrophs, such as photosynthetic algae. The subject matter of physics includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms. Computer science is the study of computers and computing as well as their theoretical and practical applications.

Complete answer:
Birbal Sahni was an Indian Paleobotanist who studied the fossils of the Indian subcontinent. He also had an interest in geology and archeology. He had also founded the Birbal Sahni Institute of Paleobotany at Lucknow in 1946.
Sahni studied evolutionary trends and geographical distributions of living plant species such as Nephrolepis, Niphobolus and Taxus. His students were particularly influenced by his ability to apply theory to observations and form hypotheses based on observations. He noticed that the wood remains from Harappa were of conifers and deduced that the people there must have had trade ties with people who lived in mountains where conifers grow. He discovered foreign pollen in the ovules of living Ginkgo biloba and pointed out the flaw in assuming that fossil pollen in ovules belonged to a single species in the New Phytologist (1915).
Birbal Sahni is also known as the Father of Paleobotany.

Hence, Option (B) is correct.

Note:
Paleobotany is the study of ancient plants through the use of plant fossils discovered in sedimentary rocks. These fossils can be impressions or compressions of plants left on the rock's surface, or "petrified" objects like wood that preserve the original plant material in a rocklike state. Other specimens are found in calcified lumps known as coal balls, which are named after the fact that they are commonly found in or near coal deposits.