Answer:
The answer is B. carbon dioxide is harmful to the atmosphere, but plants absorb it as sustenance.
Answer: between 2600 and 2400 B.C.
Explanation: The pyramids of Egypt are one of the greatest feats of engineering in the ancient world because of the technique used in its construction. They were constructed between 2600 and 2400 B.C. They were mainly built as tombs for Egyptian pharaohs and their consorts during the Old and Middle Kingdom periods. The pyramids are one of the oldest ancient structures still standing today.
Answer:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules. Chlorophyll. Inside the plant cell are small organelles called chloroplasts, which store the energy of sunlight.
Answer:
Fluid friction.
Explanation:
Friction can be defined as a force that resists the relative motion of two objects when there surface comes in contact. Thus, it prevents two surface from easily sliding over or slipping across one another. Also, friction usually reduces the efficiency and mechanical advantage of machines but can be reduced through lubrication.
Generally, there are four (4) main types of friction and these includes;
I. Static friction.
II. Rolling friction.
III. Sliding friction.
IV. Fluid friction.
Fluid friction can be defined as a type of friction that acts on objects moving through a liquid or gas. A fluid refers to any physical substance that can flow and is able to take the shape of a container.
Answer:
the Titanic of 2000 and 87
Explanation:
I took the quiz and got 100