Answer:
looding is a longer term event than flash flooding: it may last days or weeks. Flood: An overflow of water onto normally dry land. The inundation of a normally dry area caused by rising water in an existing waterway, such as a river, stream, or drainage ditch.
The correct answers are:
- allows fuel to burn;
- is the gas that animals breathe;
- forms ozone that absorbs the Sun's harmful rays;
The oxygen is one of the most important gases in the Earth's atmosphere and it has many roles in it.
This gas is the one that allows the things to burn. If there's no oxygen, that the burning of the things on the Earth would not be possible, including the burning of the fuels.
The oxygen is the gas that enables the life of the animals on the planet. Almost all animals on the Earth use the oxygen to breathe and for their bodily functions, and without it, the animals on our planet will not be able to survive.
The ozone layer is basically a layer in the stratosphere made out of ozone, which is a substance made out of three atoms of oxygen. This layer is very important because it has the property to absorb the harmful rays from the Sun, thus enabling the life on Earth to exist and not be fried to death.
<u>Answer and Explanation:</u>
The mechanism which is responsible for moving the plates that bring change in the position of the continents is the convection in the asthenosphere.
Henry Hess, a geologist and an American Navy officer in the World War II, discovered that the sea floor and the the Mid Atlantic Ridge is spreading which helped the the scientists in studying and understanding the mechanism of how the plates move.
Answer:
B
Explanation:
the San Bushmen were are the oldest inhabitants in Africa and the term San is referred to group of hunter- gatherers
ANSWER:
Biomass is a fuel that is produced from all the organic materials made by plants and animals. It is used as an energy source for many domestic purposes. The most common biomass materials used for energy are plants, wood, and waste. Biomass can be burned to create heat, converted into electricity, or processed into biofuel. Biomass can be burned by thermal conversion and used for energy.
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