The ozone layer of the atmosphere protects the planet from the sun's ultraviolet rays.
Oops!
Check
Okay!
Check
15
Say two uses of water for the living things.
Component of the body, of the blood, part of plants' cells, habitat, liquid protecting the embryos, etc.
Oops!
Check
Okay!
Check
baam
Lose 20 points!
Oops!
gift
Win 25 points!
Okay!
fairy
Take points!
5
10
15
20
25
thief
Give points!
5
10
15
20
25
15
Say two uses of water at home.
Shower, drink, clean, pool, etc.
Oops!
Check
Okay!
Check
15
Describe the hydrosphere
The hydrosphere consists of all the water on earth: oceans, rivers, lakes, glaciers, polar ice caps and the small drops of water in the atmosphere.
Oops!
Check
Okay!
Check
eraser
Reset score!
Oops!
magnet
Take 10 points!
Okay!
rocket
Go to first place!
Okay!
thief
Give points!
5
10
15
20
25
15
What does the biosphere include?
It includes all living things and the outer layers of the earth.
Oops!
Check
Okay!
Check
15
Describe the lithosphere
The lithosphere consists of the earth's crust and the upper part of the cover.
Oops!
Check
Okay!
Check
15
What is the greenhouse effect?
This effect makes the earth retain heat from the sun in its atmosphere. This causes the earth to have a temperature of about 15šC. Weather stability for life.
Oops!
Check
Okay!
Check
15
How can we use nitrogren?
Different technological processes, such as to make fertilizer and refrigerants to conserve food.
Oops!
Check
Okay!
Check
15
How do humans use soil?
For agriculture and forestry.
Oops!
Check
Okay!
Check
15
How much of the total water is available for humans to use?
Only three percent of the total water on earth is freshwater
Oops!
Check
Okay!
Check
15
Why is water important for pregnant women?
Because the liquid that protects the development of the embryos principally consists of water.
Oops!
Check
Okay!
Check
15
How can we use energy from the wind?
It can be transformed into electric energy.
Oops!
Check
Okay!
Check
15
What properties does the soil have?
It has many minerals as well as organic matter and air.