The convection is defined as the heat transferred in a liquid or a gas as a result of the actual motion of heated particles within it . If this movement is due to the effect of gravitation, due to differences in density, it is called natural convection.
Answer:
Oxygen is the component of Earth's atmosphere which exists entirely as a result of photosynthesis.
Inner core was found to be solid after observing the motion of P waves.
Explanation:
Seismologist Inge Lehmann, studied the seismic waves of an earthquake and discovered about inner core in the mantle layer of Earth. She States that there is a boundary of discontinuity between the outer and inner core of Earth.
She studied the travel of secondary and primary waves during an earthquake and how it flows at different shells of Earth's layer which helped her in finding about the inner core of mantle. She observed that the inner core is a solid layer inside the molten layer of outer core
Answer:
are heterotrophs.
Explanation: This means they eat things outside of themselves instead of producing their own food.
For the answer to the question above, I believe the answer is "Tertiary Period"
<span>The Tertiary Period marks the beginning of Cenozoic Era. It only began 65M years ago and lasted more than 63M years, until 1.8 million years ago.</span> I hope my answer helped you. Have a nice day!