Is a substance that speeds up a chemical reaction, but is not consumed by the reaction
Answer:
Orthocenter of a Triangle
The orthocenter of a triangle is the point where the perpendicular drawn from the vertices to the opposite sides of the triangle intersect each other.
• For an acute angle triangle, the orthocenter lies inside the triangle.
• For the obtuse angle triangle, the orthocenter lies outside the triangle.
• For a right triangle, the orthocenter lies on the vertex of the right angle.
Soil is a mixture of broken rocks and minerals, living organisms, and decaying organic matter called humus. Humus is dark, soft and rich in nutrients. Soil also includes air and water. Organisms in the soil need air and water to survive.
It is compared by having a reference of something u know like biology
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Answer - C
The nitrogenous base pairs on the structure of the DNA resemble the rungs of the ladder. Alternating deoxyribose sugars and the phosphate groups form the rails of the ladder.
