Explanation:
Land and water absorb most of the solar radiation from the sun. Some of this solar energy from land and water is then transferred to the lower atmosphere which is in contact with the continents and oceans. From Land, this occurs mostly as heat energy or infrared radiation. Water usually transfers this energy through the evaporation of water into the atmosphere (This is responsible for clouds in the troposphere).
The lower atmosphere therefore gets heated faster and warmer than the upper atmosphere. This causes it to become less dense. The air mass rises into upper atmosphere where it released this energy and cools down. It gains density and sinks again and the cycle continues. The energy released into the upper atmosphere is distributed across the globe by wind currents like the Gulf Stream.
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Answer:
Population
Explanation:
A group of organisms of the same species living in the same area at the same time, and which are capable of interbreeding.
Answer:
availability of nesting sites is the limiting factor (because the crowding is preventing the pair from reproducing)
Explanation:
Answer:
alpha decay because alpha particles have two protons and two neutrons
Explanation:
An alpha particle has a nucleus which is made up of 2 protons and 2 neutrons. It is actually a Helium cation.
A nuclear reaction involves the nucleus and the elementary particles contained within them.
If an isotope undergoes radioactive decay and the new isotope that forms has an atomic number that is 2 less than the original isotope,it shows an alpha decay has occurred.
The atomic number is the number of protons and it is the same as the number electrons for a neutral atom.
In this isotope, the reaction must have involved loss of two protons from the nucleus. The atomic number comes two less than that original one.
The mass number i.e number of proton + neutron is 4. Therefore, the mass number of the isotope would also decrease by 4.
This is to obey the law of conservation by mass.