It is b that us the answer
<span>The ecosystem consists of the abiotic and biotic community,
their interaction and cause-effect with one another. it is an ongoing mutual process. The ecosystem also has
different biogeochemical cycles that sustains, maintains and support life in
the biosphere. Furthermore, if we capsize the components of the ecosystem into
two parts as said it would be the living and nonliving things. Hence, the abiotic
community or nonliving things may include water, metals, soil, fire, air and
etc. while the biotic community or the living organisms would be just plants
and animals. </span>
Scientists may use maps like these to compare temperatures from two different times. For example, this scientist may use this temperature map and compare the new temperatures in a few months. This is one way a scientist can use maps like these.
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Answer:
Explanation:
Bands are used in separation of agarose gel during electrophoresis. It helps to separate DNA fragments. DNA strands are negatively charged and are moved towards the anode according to there sizes this creates the bands that is seen. The Bands are viewed ender ultraviolet rays of light.
The bands are usually clear and distinguishable when viewed but smearing could occur and this makes the band lump together.
Number 1
Explanation:
The first diagram represents the electron configuration of a carbon dioxide molecule.
Carbon dioxide as gaseous covalent molecule made up of two oxygen atoms and one central carbon atom:
CO₂
Carbon dioxide has linear structure with a bond angle of 180°.
In carbon dioxide, the atoms are covalent bonded.
The central atom is carbon and it joins up with two oxygen atoms.
The carbon has 4 valence electrons that goes into bonding in pairs. The oxygen atom has 6 valence electrons.
In order to complete their octet, they share their outermost electrons in the manner shown in the first diagram.
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Covalent bond brainly.com/question/5258547
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