Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object.
The methods of sensing are based on electromagnetic energy released or reflected from Earth's surface at some range above the earth. Remote sensors can be either passive or active depending upon the source of electromagnetic energy.
Earth's surface and atmosphere may involve the use of any of the instruments depending on the type of research to be done.
There are mainly two types of instruments used, passive and active instruments, below are some of the instruments used;
Ozone and Aerosol LiDAR. Radar Wind Profiler, Radiometer, Imaging Radiometer, Spectrometer, Spectroradiometer, Radar (Radio Detection and Ranging), Scatterometer, Lidar (Light Detection and Ranging), Laser Altimeter, SAOZ Instrument.
Answer:
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The two true statements about redox reactions are:
C. One type of atom is oxidized and another is reduced.
D. Electrons are transferred from one atom to another.
<h3>What is a redox reaction?</h3>
A redox reaction is also known as an oxidation-reduction reaction and it can be defined as a type of chemical reaction in which the oxidation number of an atom of participating chemical species are changed.
This ultimately implies that, the two true statements about redox reactions include the following:
- One type of atom is oxidized while the other is reduced.
- Electrons are transferred from one atom of participating chemical species to another.
Read more on redox reaction here: brainly.com/question/13668620
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<u>Complete Question:</u>
Which two statements about redox reactions are true?
A. Double-replacement reactions are redox reactions.
B. Acid-base reactions are redox reactions.
C. One type of atom is oxidized and another is reduced.
D. Electrons are transferred from one atom to another.