Technology in Everyday Life
We use
technologies to exchange information, to clean our clothes, to prepare our
meals and to get from one place to another.
Water Conservation:
Water conservation includes all the policies,
strategies and activities to sustainably manage the natural resource of fresh
water, to protect the hydrosphere, and to meet the current and future human
demand.
Carefully use
of water in order to avoid any wastage is called…….
a) water conservation
b) water
pollution
c) water management
d) water recycling
How much percentage of the earth surface is covered by water?
a) 30
b) 40
c) 60
d) 70
Explanation:About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog.
How much percentage of the earth surface is covered by land?
a) 30
b) 40
c) 60
d) 70
How much percentage of the total water is present in sea?
a) 70
b) 40
c) 90
d) 98
