A. 5 B. 6 C. 7 D. None of these. The modern periodic table was created by Mosley. There are 7 horizontal rows which are called periods. They are also called series. Also, the modern periodic table consists of 18 vertical columns which are called groups.
A. 17 B. 18 C. 19 D. None of these. The modern periodic table was created by Mosley. There are 7 horizontal rows which are called periods. They are also called series. Also, the modern periodic table consists of 18 vertical columns which are called groups.
A. Arabian Peninsula B. Malacca Strait C. Gulf of Guinea D. All of These gulf of guinea [atlantic ocean]
A. Cashew nut B. Milk C. Apple D. Watermelon The Correct answer is B. Milk and milk products are good sources of vitamin B12. Many ready-to-eat breakfast cereals are fortified with vitamin B12. Fish and red meat are excellent sources of vitamin B12. Poultry and eggs also contain vitamin B12.
A. Saturn B. Mars C. Venus D. None Saturn is very large and is the second largest planet in the Solar System. However, it is made up mostly of gas and is less dense than water. Since it is lighter than water, it can float on water. None of the other planets in our Solar … Read more
A. Oxygen and Ammonia B. Hydrogen and Helium C. Hydrogen and Oxygen D. Methane and Hydrogen The Sun is a huge ball of hydrogen and helium held together by its own gravity.
A. Alcohol B. Oxalic Acid Solution C. Kerosene Oil D. None of These Oxalic acid’s main applications include cleaning on bleaching, especially for the removal of rust(iron complexing agent). Bar Keepers Friend is an example of a household cleaner containing oxalic acid. Its utility in rust removal agent is due to its forming a stable … Read more
A. Snellen Chart B. Maslow’s pyramid C. Gantt Chart D. Peptide Test A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen, who developed the chart in 1862. Many ophthalmologists and vision scientists now use an improved chart known as … Read more
A. O1 B. O2 C. O3 D. O4 Ozone is a molecule made up of three oxygen atoms, often referenced as O3. Ozone is formed when heat and sunlight cause chemical reactions between oxides of nitrogen (NOX ) and Volatile Organic Compounds (VOC), which are also known as Hydrocarbons.
A. Vitamin B1 B. Vitamin B6 C. Vitamin B9 D. Vitamin B12 Vitamin B9, also called folate or folic acid, is one of 8 B vitamins. All B vitamins help the body convert food (carbohydrates) into fuel (glucose), which is used to produce energy. These B vitamins, often referred to as B-complex vitamins, also help … Read more