P-1 Refraction of light — Science STD 10 — Question

Answer the following :
(a) In our country, there seems to be lack of awareness regarding reproductive health. Why?
(b) Write the symptoms of disease gonorrhea.
(c) What precautions will you take to maintain reproductive health?

Energy obtained from fossil fuels is not green energy.

(Capability, Rehabilitation, Commodities, Human, objectives, normalcy, amusements)
The ………. of disaster management comprise of the following aspects …………. life is saved from the disasters. People are helped to move away from the place of disasters. They are given essential ……….. by the government so that the gravity of disaster is reduced. The disaster conditions are brought back to ………… of the affected and displaced victims is done. Moreover, protective measures for future are also planned to develop ………… among the people to face any possible disasters in future.

Which precautions will you follow to maintain the reproductive health?

A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads:
Left eye: +2.50D, Right eye: +2.00D

1. State whether these lenses are thicker in the middle or at the edges.
2. Which lens bends the light rays more strongly?
3. State whether these spectacle lenses will converge light rays or diverge light rays.

Explain the application of heating effect of electric current in an electric bulb.

How can the oil spills of rivers and oceans be cleaned?

Name three products of the chlor-alkali process. State two uses of each of these products.

Explain the following terms:
i. Metallurgy
ii. Ores
iii. Gangue

Explain the following:
How can you relate the formation of water droplets on the outer surface of a bottle taken out of refrigerator with formation of dew?