What two recurring events in earth’s history have an impact on the carbon cycle? a)earth’s orbit and climate change b)solar events and eclipses

A earth orbit and climate change

a. Earth’s orbit and climate change

Explanation:

Over the years, the carbon cycle has seen changes in response to climate change. The amount of energy has varied in comparison to the changes is the earth’s orbit. The development of ice ages has seen a slowdown in the carbon cycle.

Similarly, temperature variations and climate changes initiated by the burning of fossil fuels have deeply impacted the carbon cycle by increasing the ratio of carbon dioxide in the atmosphere causing global warming. Therefore, the earth’s orbit and climate change are two recurring events in the Earth’s history that have impacted the carbon cycle.

i think the answer is b.

hope it

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.