Aqi Air Quality Index

Aqi Air Quality Index

Local air quality affects how you live and breathe. Like the weather, it can change from day to day or even hour to hour. The U.S. Environmental Protection Agency (EPA) and your local air quality agency have been working to make information about outdoor air quality as easy to find and understand as weather forecasts. A key tool in this effort is the Air ...

Air Pollution Quick Quiz

Air Pollution Quick Quiz

1 Which statement about the Earth’s atmosphere is not true? A It originally had no oxygen in it. B Volcanoes can change the composition of the atmosphere. C The oxygen in the atmosphere was produced by volcanoes. D When algae evolved, they produced a gas that poisoned many other organisms. 2 Which of the following is not responsible for making rainwater ...

Hydraulics and Pneumatics — Difference and Confusion

Hydraulics and Pneumatics — Difference and Confusion

In the world of fluid power application, the difference between hydraulics and pneumatics are often comprehensively covered. These two kinds of power circuits are actually similar in a number of ways in that they both use a fluid to channel mechanical energy as well as in the executions, terminology, and components. Both systems likewise require a certai ...

A Study of the Air Pollution Index Reporting System

A Study of the Air Pollution Index Reporting System

The Air Pollution Index (API) Reporting System is an important tool of risk communication. It informs the public of the local level of ambient air pollution, and the potential health risk it would impose, particularly on vulnerable groups such as children, the elderly, and those with existing cardiovascular and respiratory diseases. People use the API to ...

CREATING Species-Rich Grassland

CREATING Species-Rich Grassland

Agriculturally improved grassland usually has high levels of nitrates and phosphates. These promote grass growth (and Dandelions) preventing the establishment of wild flowers which thrive on nutrient-poor soils. Reducing nutrients before sowing wildflower seed is therefore essential. There are several options:ep plough the grassland: the top soil with nu ...

Tributary Quick Quiz

Tributary Quick Quiz

1 What is digested food used for in our bodies? A to provide energy only B to provide energy and chemicals to make new substances C to provide oxygen D to provide carbon dioxide 2 What is the name of the process that releases energy in our bodies? A photosynthesis B excretion C reproduction D respiration 3 Living cells in the bodies of animals all produc ...

Limestone Quick Quiz

Limestone Quick Quiz

Compared to non-metals, metals are: A good conductors of heat, but not of electricity. B good conductors of electricity, but not of heat. C good conductors of both heat and electricity. D not good conductors. 2 Which of the following best explains why the periodic table is so useful? A It makes it easy to see all the elements. B It arranges the elements ...

Natural Resources Quiz

Natural Resources Quiz

1. Why are trees considered natural resources? a. They provide valuable shade that no other resource can provide. b. Humans use them to produce paper, lumber, fuel, and other products. c. They are an important source of firewood for campfires. d. They grow back after they're cut down. 2. Which of these is a factual statement about natural resources? a. S ...

Classification of Flammable and Combustible Liquids

Classification of Flammable and Combustible Liquids

FLAMMABLE LIQUIDS “Class I” FLAMMABLE LIQUID refers to any liquid having a flash point below 100°F and is subdivided into three classes with some examples listed below: Class IA Flash point below 73 F, boiling point below 100 F acetaldehyde ethyl chloride methyl ethyl ether collodion ethyl ether pentane chloroethane diethyl ethyl ether pentene ethylamine ...

All About Limestone

All About Limestone

Limestone is one of the most common types of rock found on the surface of the Earth. About 10% of the land surface of our planet is made of limestone or similar types of rock; while around 25% of the world’s population either live on or take their water from limestone. It is thought that 50% of all our oil and gas reserves are trapped in limestone buried ...

Rock Quick Quiz

Rock Quick Quiz

1 Which of these is an example of a sedimentary rock? A soil B limestone C gravel D tarmac 2 The grains of rock that form sedimentary rocks were formed by weathering and erosion. Which statement is correct? A Weathering breaks up the rocks, and erosion moves the bits away. B Erosion breaks up the rocks, and weathering moves the bits away. C Erosion is ca ...

Granits

Granits

Granite is a light-colored igneous rock with grains large enough to be visible with the unaided eye. It forms from the slow crystallization of magma below Earth's surface. Granite is composed mainly of quartzand feldspar with minor amounts of mica, amphiboles, and other minerals. This mineral composition usually gives granite a red, pink, gray, or white ...

Introduction to Types and Classification of Rocks

Introduction to Types and Classification of Rocks

Generally rocks can be divided into three major types based on the process of their formation. These are; Igneous rocks, sedimentary rocks and metamorphic rocks. Igneous rocks are formed by the solidification and cooling of magma in volcanic areas, while sedimentary rocks are formed by low temperature accumulation of sediments in tectonic basins and topo ...

Non-Clastic Sedimentary Rocks

Non-Clastic Sedimentary Rocks

Rocks can be put into three main groups. They are grouped by how the rocks formed. Sedimentary (sed-uh-MEN-tuh-ree) rocks are formed on or near Earth's surface. Sedimentary rocks are sorted into other groups. They can be sorted as clastic or non-clastic. This group tells something about the rocks' beginning and what they formed from.

Practice Questions: Igneous Rocks

Practice Questions: Igneous Rocks

What is the color and type of rock that forms oceanic crust at mid-ocean ridges? A) light colored and igneous B) light colored and sedimentary C) dark colored and igneous D) dark colored and sedimentary

Igneous Rock

Igneous Rock

Definition of Igneous Rocks Definition of Igneous Rocks • Igneous rocks form from cooling and Igneous rocks form from cooling and crystallization of molten rock crystallization of molten rock- magma – Magma – molten rock within the Earth molten rock within the Earth – Lava – molten rock on the Earth molten rock on the Earth’s surface s surface • Igneous ...