Answer:
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Hope this helps.
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Question- The _________ is the largest, best-known savanna.
☆ Serengeti plain
☆ savanna
☆ short grass prairie
☆ tallgrass prairie
Answer- <u>Serengeti plain</u>
In-Line answer- The <em><u>Serengeti Plains</u></em> is the largest, best-known savanna.
A little about it-
<u>The Serengeti plains</u> is best known for the huge herds of plain's animals, and it is the only place in Africa where vast land-animal migrations still take place. The park is an international tourist attraction, was added to the UNESCO World Heritage List. It spans about 12,000 square miles (30,000 square kilometers).
~ Benjemin360
Answer:
it may break, rust, and destroy things
Example:
water gets into the cracks and crevices of rock and freezes, causing the rock to break and occasionally even shatter in something much like an explosion
People with two copies of the sickle cell gene have the disease. People who carry only one copy of the sickle cell gene do not have the disease, but may pass the gene on to their children. Abnormal hemoglobin, called hemoglobin S, causes sickle cell disease (SCD). The problem in hemoglobin S is caused by a small defect in the gene that directs the production of the beta globin part of hemoglobin. This small defect in the beta globin gene causes a problem in the beta globin part of hemoglobin, changing the way that hemoglobin works.
Answer:
Manipulated variable
Explanation:
Manipulated variable - The factors that are purposely changed in the experiment
Responding variable - The factor that changes due to the manipulated variable
Fixed variable - Other factors that are kept constant throughout the experiment
Hope this is correct and helpful
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