Correct statement, if it is wrong. Propane is the chief component of natural gas.

Natural gas is a mixture of gases. It consists mainly of hydrocarbons. The main component is methane. Natural gas is often found in the ground, either alone or together with petroleum. Most natural gas is burnt as a fuel to produce energy. It burns with a clean blue flame, causing little pollution.

Correct statement, if it is wrong. India is called the 'country of winds'.

* Denmark is called the " country of winds" as it has the highest proportion of wind power in the world. * Wind dominated, with 47 % of the green energy coming from wind turbines. * Denmark fulfil 50 % of its power requirements from renewable energy

What is energy management?

Energy management is a process that involves optmisation of energy use for the best possible outcomes and taking steps for its conservation. It also includes planning related to the production of energy and its storage for future usage. So, the ultimate aim of this process is not only to save the cost but also to achieve complete environmental sustainability.

Study the food chain below, correct it and convert it into a pyramid of energy. M u l b e r r y → S p a r r o w → C a t e r p i l l a r → K i t e .

Mulberry is an autotrophic plant. The caterpillar feeds on mulberry which is the primary consumer. The sparrow is a bird that feeds on the caterpillar and acts as the secondary consumer. The kite feeds on the sparrow and is the tertiary consumer. The energy flow from producers towards consumers of different levels in the food chain. The corrected food chain is as given below: M u l b e r r y → C a t e r p i l l a r → S p a r r o w → K i t e

We are surrounded by smoke. Is this situation good for our health ? Give reason.

Smoke primarily consists of particles and can include other gaseous air pollutants, including nitrogen oxides, carbon monoxide, and hydrocarbons that may be toxic. Exposure to smoke can cause health effects and make existing health conditions worse. Most healthy children and adults will recover from short-term smoke exposure. Smoke content above a particular level can cause allergy and irritation to the eyes and throat. High smoke content in the air can also cause upper respiratory infections such as bronchitis and pneumonia. However, certain sensitive populations may experience more severe acute and chronic symptoms, and even healthy people may experience symptoms. People with heart conditions or respiratory illnesses, children, and seniors are more sensitive to the effects of smoke. Therefore, we can say that this situation is not good for us.

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 22 - Environmental Management>Tamilnadu Board-2018>Q 9

MEDIUM

10th Tamil Nadu Board

IMPORTANT

Earn 100

Match the suitable renewable and non-renewable resources.

Sources A B C

Renewable Coal Wind Petroleum

Non-renewable Hydrogen Natural gas Solar energy

Important Questions on Environmental Management

EASY

10th Tamil Nadu Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 22 - Environmental Management>Tamilnadu Board-2019>Q 10

A non-renewable resource is a natural resource. It can be replaced by natural process at a rate equal to or faster than its rate of consumption by humans.

Read this statement and say whether it is correct or incorrect. If it is incorrect, give the correct statement.