2. Write answers to the following questions,
in your own words.
(a) What is meant by fossil fuel? What
are their types ?
(b) Make a list of the components we
obtain from mineral oil.
(c) What do we get from forests ?
(d) What are the items included in
ocean resources? What are their
uses ?
(e) Why should we prevent the wastage
of fuel used for vehicles ?
(1) Why is the diversity of plants and
animals in the forests declining?
(g) Write the names of five minerals
and the useful substances obtained
from them.
(h) Name the two important stages in
the process of obtaining metals from
ores?
if you know the correct answer to all of the above plz reply..i will mark as brainliest answer...plz
Answers
1)Fossil fuels consist of deposits of once living organisms. The organic matter takes centuries to form. Fossil fuels principally consist of carbon and hydrogen bonds. There are three types of fossil fuels which can all be used for energy provision; coal, oil and natural gas.
2)List of Components we obtain from Mineral oil:
Baby oil.
Baby lotions.
Cold creams.
Ointments.
Cosmetics.
Can be used as transformer oil in transformers.
Spindle oil which acts as lubricant in textile industry.
Break fluid in some cars and bikes disc brakes.
3) But—as some of you probably know—the trees that grow in these forests also provide us with many products we use in our everyday life.
...
7 Products You Didn't Know Come from Trees
Latex Rubber Gloves. ...
Sponges. ...
Wine Corks. ...
Chewing gum. ...
Car wax. ...
Hair Dye. ...
Chocolate
4)Ocean resources provide jobs, goods and services for billions of people around the world and have immense economic importance. There resources include food, fuel, renewable energy, minerals, sand and gravel and tourism.
5)We all know that fuel is the natural source of energy and due to excessive use of it, one day it will be one finish. To prevent fuel we should use more public transport, CNG gas engine vehicles and other electric vehicles to prevent more fuel for next generation.
6)It is only obvious that the diversity in plant and animals will decrease due to the increase in amount of population, reckless cutting of trees or deforestation and rise in the pollution leading to global warming.
7)Write the names of five minerals and the useful substances obtained from them.
Coal. It is known as the Black gold and very useful for the generation of the Electricity, ammonia, Sulphur tar, etc.
Iron ore. ...
Manganese. ...
Bauxite. ...
Petroleum.
8) Metals are obtained from their ore by extraction and purification. Most of the metals are harvested from the underground mines. And in the initial stage various impurities are also mixed with the metals,and with these impurities the metals are known as the ores
Answer:
a)fossil fuel were form the dead remain s of living organisms buried under the earth million s of year s ago.
b)it isobtained by the process of fractional distillation.
2.it is colourless and odourless.
3.it is mixture of alkanesc15to c40.
4. common engradient is baby lotion,cold cream, cosmetic.
5.it's density is 0.8g\cm square