Ahydrocarbon that contains only single bonds between the carbon atoms is called a(n):

a. alkene
b. alkane
c. alkyne
d. alkine

Conservation efforts have been effective in "increasing the number of endangered species, reducing all the negative impacts of human activity, and preserving wildlife habitats".hope my answer has you : ) 

In any atom of any element, you will find protons and neutrons in the nucleus of any atom