Answer:
C. in areas with different air pressures
Explanation:
"Convection currents occur within:
The geosphere – plate tectonics
The atmosphere - wind
The hydrosphere - ocean currents"
Hope this helps u.
The spinal cord is located in the vertebral foramen and is made up of 31 segments: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal. A pair of spinal nerves leaves each segment of the spinal cord.
Answer:
The answers are: "Exploration", "Refined/Distilled" and "Companies"
Explanation:
When unrefined petroleum is removed starting from the earliest stage, should be shipped and refined into oil based goods that have any worth. Those items should then be moved to end-use buyers or retailers (like gas stations or the companies that conveys warming oil to your home). The general well-to-buyer inventory network for oil based commodities is frequently portrayed as being sectioned into three parts:
Upstream activities: include investigating for raw petroleum stores and the creation of raw petroleum. Instances of firms that would have a place in the upstream portion of the business incorporate organizations that own privileges to drill for oil (e.g., ExxonMobil) and organizations that offer help administrations to the boring section of the business (for example Halliburton).
Midstream activities: include the appropriation of raw petroleum to purifiers; the refining of unrefined petroleum into sale-able items; and the circulation of items to wholesalers and retailers. Instances of firms that would have a place in the midstream portion of the business incorporate organizations that transport oil by pipeline, truck or freight boat (e.g., Magellan Pipeline); and organizations that refine unrefined petroleum (e.g., Tesoro).
Downstream activities: include the retail offer of oil based commodities. Fuel stations are maybe the most obvious downstream organizations, yet organizations that convey warming oil or propane would likewise fall into this classification.
Answer:
active enzyme + substrate→ product + active enzyme
Explanation:
The equation is just a representation of mechanism of enzyme action.
About enzymes, we know that they are proteinaceous substances or chemicals which take part in a chemical reaction and speed up the rate of reaction.
This is because they react with the substrate and transform it into a product in a quicker manner.
Mechanism of action:
- All the enzymatic activities are due to its specific nature and shape. Enzymes have a certain area called active site which is responsible for the enzymatic activity.
- The substrate attaches itself into the active site of the enzyme, enzyme starts its working and the end of reaction is when a product is formed and enzyme in its active form is still available and ready to speed up another reaction.
- You can see mechanism and understand in a better way in attached figure.
Hope it help!
The right option is; ice sheets
The only ice sheets that exist today are found in Greenland and Antarctica.
Ice sheets are masses of glacial ice that covers more than 50,000 square kilometers. The only ice sheets that exist on earth currently are found in Greenland and Antarctica. This two ice sheets contains most of the freshwater ice on earth. Ice sheets are formed during winter when snow falls and partially melts over the summer. The snow then accumulates to form dense and thick masses of glacial ice.