Biotechnology has contributed all of the following to agriculture except
a.
pesticides
b.
synthetic fertilizers
c.
shifting cultivation
d.
bioengineered crops

(C) Shifting cultivation

Explanation:

 Biotechnology is basically refers to the technology which is related to the biology and it is used in various types of medicine, food science and also in the agriculture process. In the bio-technology, the living organism are basically used for making the various types of useful products and the chemicals.

The bio-technology is not contributed in the shifting cultivation as it is the method of the farming process where the land are get cleared for the cultivation.

Therefore, Option (C) is correct.

heat released by collision processes during accretion, and heat from decay of radioactive elements

explanation: