Insects may be preserved in the hardened sap of trees called


rock

organic compound

A...Amber

Explanation:

Amber is a fossilized tree resin. The resin varies in color depending upon the tree species. It becomes hard after drying. It is used for making jewellery and ornaments. It is sometimes also consider as gemstone. It is called as fossilized resin because of the fact that the resin on being liquid traps insects, plant structures, annelids and frogs. On hardening the entire trapped material get preserved as a fossil.

On the basis of the above explanation, A. Amber is the correct option.

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.