Which of the following correctly compares the benefits of two forms of renewable energy?

a) geothermal energy and natural gas are both clean energy sources.
b) biomass energy and solar power are both clean energy sources.
c) natural gas and wind power are both clean energy sources.
d) wind power and geothermal energy are both clean energy sources.

The answer is B. Because bio mass energy & solar energy are both renewable

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.