Answer:
petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure.
The monomer of a nucleic acid (DNA is made up of multiple nucleic acids) is a nucleotoid.
All the blood types are A+, A-, B+, B-, O+, O-, AB+, and AB-.
What do you mean by "What is a shooting star, a comet or a meteor burning in our Earth’s Atmosphere?"
edit: ohhhhh you are asking what a shooting star is...
its particles of comets or astoroids/metor enter the atmosphere at very high speeds and burn up
This is true , trees loose their leaves as a part of growth, also in seasons they loose leaves.
