THE INDUSTRIAL PREPARATION OF HYDROGEN GAS FROM WATER GAS IS REFERRED TO AS
A. Bosch process ✓ B. Contact process C. Haber process D. Bayer Process The answer to the question is: A. Bosch process Bosch’s process is a method used for the industrial preparation of hydrogen. This process involves the reaction of steam with hydrocarbons to…
IN MOSSES THE STRUCTURE WHICH PERFORMS THE FUNCTION OF WATER ABSORPTION IS THE
A. root hairs B. rhizoids ✓ C. capsule D. hyphae The answer to the question is: B. rhizoids In mosses, the structure that performs the function of water absorption is the rhizoids. Rhizoids are thread-like structures that extend from the lower part of the…
ICE CUBES ARE ADDED TO A GLASS OF WARM WATER. THE GLASS AND WATER ARE COOLED BY
A. conduction only B. convection only C. conduction and convection ✓ D. convection and radiation The answer to the question is: C. conduction and convection When ice cubes are added to a glass of warm water, the cooling process involves both conduction and convection.…
THE PROPERTY WHICH MAKES ALCOHOL SOLUBLE IN WATER IS THE
A. boiling point B. hydrogen bonding ✓ C. ionic character D. covalent nature The answer to the question is: B. hydrogen bonding The property which makes alcohol soluble in water is hydrogen bonding. Hydrogen bonding is a type of intermolecular force that occurs when…
WHEN DISSOLVED IN WATER, NAOH FLAKES SHOW
A. An endothermic change B. An exothermic change ✓ C. A slow reaction D. A rapid reaction The answer to the question is: B. An exothermic change When sodium hydroxide (NaOH) flakes are dissolved in water, they undergo an exothermic change. This means that…
IN A FIELD EXPERIMENT, THE FREQUENCY OF WATER LEAF WAS OBSERVED TO BE 48 AFTER 20 TOSSES OF A 2m^2 QUADRAT. WHAT IS THE DENSITY OF THE PLANTS IN THE FIELD
A. 1.2 per m2 ✓ B. 2.4 per m2 C. 4.8 per m2 D. 9.6 per m2 The answer to the question is: A. 1.2 per m2 Calculating Plant Density To calculate the density of the plants in the field, we can use the…
A SOLUTION CONTAINS 20g OF SOLUTE IN 180g OF SOLVENT. IF THE SOLVENT IS WATER, WHAT IS THE CONCENTRATION OF THE SOLUTION IN TERMS OF MASS BY MASS PERCENTAGE
A. 11.% B. 22.2% C. 10% ✓ D. 20% The answer to the question is: C. 10% The mass by mass percentage of a solution is calculated by dividing the mass of the solute by the total mass of the solution (solute…
A BODY WHICH WEIGHS 50N IN AIR DISPLACES 3.7KG OF WATER WHEN PARTIALLY IMMERSED IN WATER. CALCULATE THE UPTHRUST ON THE BODY
A. 8.7N B. 37.0N ✓ C. 87.0N D. 13.0N The answer to the question is: B. 37.0N To calculate the upthrust on the body, we can use Archimedes’ principle, which states that the buoyant force acting on a body partially or fully…
THE INITIAL VOLUME OF WATER POURED INTO A BAG OF DRY SOIL WAS 50ML AND THE AMOUNT THAT DRAINED THROUGH WAS 35ML. THE PERCENTAGE WATER CONTENT OF THE FULLY SOAKED SOIL IS THEREFORE
A. 46.7 B. 25.0 C. 20.0 D. 30.0 ✓ The answer to the question is: D. 30.0 The percentage water content of the fully soaked soil can be calculated using the formula: Percentage water content = (Amount of water retained / Initial…
A QUANTITY OF WATER AT 0 °C IS HEATED TO 30 °C. FOR EACH DEGREE RISE IN TEMPERATURE, ITS DENSITY WILL
A. rise steadily B. fall steadily ✓ C. fall and then rises D. rise and then falls The answer to the question is: B. fall steadily When a quantity of water at 0 °C is heated to 30 °C, its density will decrease. This…
IT TAKES 4 MINUTES TO BOIL A QUANTITY OF WATER ELECTRICALLY. HOW LONG WILL IT TAKE TO BOIL SAME QUANTITY OF WATER USING THE SAME HEATING COIL BUT WITH THE CURRENT DOUBLED
A. 64 minutes B. 32 minutes C. 8 minutes D. 2 minutes E. 1 minute ✓ The answer to the question is: E. 1 minute To calculate how long it will take to boil the same quantity of water using the same heating coil…
A HEATING COIL IS RATED AT 70 W, CALCULATE THE TIME IT WILL TAKE THIS COIL TO HEAT 1.4 KG OF WATER AT 30°C TO 100°C
To calculate the time it will take for a heating coil to heat a given amount of water, we can use the formula: Q = mcΔT where Q is the heat energy transferred, m is the mass of the water,…
TRANSPORT OF WATER AND MINERAL SALTS INTO THE LEAVES OF A FLOWERING PLANT
Water and mineral salts are transported into the leaves of a flowering plant through a process called transpiration. Transpiration is the loss of water vapor from the plant’s aerial parts, primarily through the stomata on the leaves. This process relies…
IWRM FOR SUSTAINABLE WATER
Integrated Water Resources Management (IWRM) is a process that helps to coordinate and manage water resources in an integrated manner, taking into account the interdependencies among water resources, their social, economic, and environmental implications, and the needs and preferences of…
BOD MEASUREMENT FOR WATER
Biological Oxygen Demand (BOD) is a measure of the amount of dissolved oxygen consumed by microorganisms in water while decomposing organic matter. It is used as an indicator of the level of organic pollution in water. BOD is measured by…
POLLUTION OF WATER RESOURCES
Man cannot survive without water. The low population densities in the desert natural region is because of the water deficiency which renders vast areas of land uninhabitable. The sources of water include oceans, rivers, lakes, rainfall and groundwater. Unfortunately, man…
THE TEMPERATURE OF OCEAN WATER
Like land masses, ocean water varies in temperature from place to place both at the surface and at great depths. Since water warms up and cools down much more slowly than the land, the annual range of temperature in any…
LANDFORMS DUE TO WATER ACTION IN THE DESERTS
Wind erosion, transportation and deposition are most effective and widespread in desert regions, but few deserts in the world are entirely without rain or water. In some deserts, there are perennial rivers such as the Nile in Egypt which has…
WATER TRANSPORT
Water transport is the means of conveying goods and people from one place to another through the rivers, seas or oceans by ships, canoes etc. This facilitates international trade between different nations because goods and passengers can be easily transferred.…
FEATURES OF A STANDARD FISH POND
The essential features of a standard fish pond include: Dam. Core trench. Distribution channel. Spill way. Monk. Boards. Screen. Dam slope (inner and outer). Dam: This is the large area of the pond that holds water. It ensures the availability…
IRRIGATION
Irrigation is defined as the artificial or manmade application of water to soil or land for farming purposes. In other words, irrigation is the artificial application of water to the soil to supplement insufficient rainfall. Irrigation is mainly practised in…
WATER RESOURCES
Water resources refer to any useful material (living or non-living) inside water which are of benefit to man, animals and plants. Water resources are some of the most important environmental resources of man. Sources of water: Sources of water include…
ATMOSPHERIC RESOURCES
Atmospheric resources are those elements such as wind, water, sunlight and gases found in the atmosphere which are of benefit to man, animals and plants. Types of Atmospheric Resources Atmospheric gases, e.g. oxygen, nitrogen, carbon dioxide, water vapour, ozone layer…
ENVIRONMENTAL CONSERVATION
Conservation is defined as the planned, control exploitation or judicious use of natural resources to ensure their continuous availability and to preserve the quality or original nature of the environment. In other words, conservation is the preservation of natural resources…
METHODS AND IMPORTANCE OF LAND RECLAMATION
METHODS OF LAND RECLAMATION There are various methods of land reclamation. These include the following: Afforestation: Afforestation is the process of establishing forest plantations in an area. In Nigeria, it is popularly referred to as tree planting campaign in which…
AQUATIC HABITATS
Aquatic habitat is a body of water in which certain organisms live naturally. In other words, aquatic habitats are habitats or places that relates to lives in water. Organisms that live in water are called aquatic organisms. Examples of aquatic…
FISHERIES
All the activities relating to the production of fish and other aquatic animals known as fisheries. Fishes are cold-blooded animals, that is their body temperature changes according to that of their surroundings in which they live. They breathe with the…
EFFECTS OF RUNNING WATER
Running water can be defined as the natural movement of water in a certain direction. Running water is one of the most important agents of denudation. Rivers are involved in erosion, transportation and deposition of materials. RIVER A river…
ACTION OF UNDERGROUND WATER
Underground water is the water that sinks into the ground, that is, the water that enters the rocks. Water can enter a rock in two ways: Through the spaces called pore spaces separating the individual grains of rock. Through the…