GAJWANI SCHOOLS & COLLEGES Sources of energy. Q1 Answer the following questions in brief. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. 1. What is meant by non-renewable energy sources? Give their examples. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Ans. When the energy of any source of energy is used then naturally if the energy of that source is not available GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. For use in near future that source of energy is called non-renewable energy source. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Mineral coal , natural gas and petroleum products are example of it. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. 2. What is meant by renewable energy source ? Give its examples. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Ans. When the energy of any source of energy used then naturally if the GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Energy of that source is available for use in near future then , that source of energy GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Is called renewable energy source. Wind energy , hydro energy , solar energy , Geo- GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Thermal energy, Bio- mass energy are example of it. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. 3. State the characteristics of non renewable energy sources. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Ans.1. his source of energy decreases 2. The use of this energy source increases pollution. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. 3. This energy source is under the ownership of an individual, a particular group or a country. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. 4. State the characteristic of renewable energy sources. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Page no. 88 GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. 5. State how the mineral coal is produced and write its uses. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Page no89 6 . State four remedies to save energy. GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3

GAJWANI SCHOOLS & COLLEGES Sources of energy. Page no97 GAJWANI SCHOOLS & COLLEGES CH 9 STD 7 SCIENCE SEM 1 WEEK 2 DAY 3