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mojhsa [17]
3 years ago
14

Alpha particles used in the Gold foil experiments are Helium atoms that__?

Biology
1 answer:
Harlamova29_29 [7]3 years ago
3 0

Answer:

2. have no negative particle

Explanation:

Helium atoms contains 2 neutrons and 2 protons (or 2 electrons). Thus, it has a mass number of 4 and atomic number of 2.

Alpha particles are heavy and positively charged, which make them to be deflected in a magnetic or electric charge. So, the helium atoms used as alpha particles for the gold foil experiment must have no negative particle.

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In one to three sentences, describe what happens during the reduction stage of the Calvin cycle.
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ATP and NADPH transfer chemical energy to 3-PGA.

Glyceraldehyde 3-phosphate (G3P) is created.

G3P is used to make sugar.

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In complete sentences describe the energy flow between the Sun, the Earth, and space.
evablogger [386]

Answer: The energy from the sun passes through space in the form of invisible waves to the earth surface. It heats up the earth’s surface causing variation in climate.  

Explanation:

The amount of incoming energy from the Sun decides the weather and climate of earth. If the energy that is incoming and outgoing on the earth, then climate is in equilibrium. The balance is depending on the scattering, absorption, reflection and transformation of energy.  

The energy from sun passes through space and reaches the earth’s surface. On reaching surface, the solar energy warms the atmosphere releasing heat energy which gets transferred throughout the planets system by radiation, conduction and convection. Conduction happens in the atmosphere within first several millimeters close to the surface. This heated air expands as it is dense and rises causing transfer of heat to atmosphere through convection process. It results in formation of clouds.

The radiant energy from sun is transmitted via space in form of invisible waves. But much of the suns radiant energy, is transmitted back to atmosphere. The objects on earth like land, plants, animals absorb radiant energy as heat of which one third gets re-radiated back to atmosphere that is absorbed by carbon dioxide and water vapor. The atmosphere radiates heat energy back to earth increasing the earth temperature. This trapping of radiation is greenhouse effect.  

The thermal energy obtained by convection currents are responsible for wind, cloud formation, and weather formation.  The hydrosphere that comprises of 70% of earth’s surface absorbs solar energy.  

On the basis of the above explanation is:  

The energy from the sun passes through space in the form of invisible waves to the earth surface. It heats up the earth’s surface causing variation in climate.  

3 0
3 years ago
_____ phase is the period during the life of a cell between the end of mitosis and the synthesis of more genetic material.
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Banana plants grown for food crops are the result of asexual reproduction. Does the genetic information of each plant come from
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Which causes the biodiversity of rainforests?
sashaice [31]

Answer:

B. Stable ecosystems

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The main cause of the biodiversity experienced in rain forests is largely due to the stable ecosystems that they enjoy.

A stable ecosystem is a sustainable one that does not change too much over the course of time.

Most organisms and the diverse life forms are easily nourished by the provisions made available by nature in such regions.

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