4. The rooftops of buildings in hot climate are made of
(a) Plastics
(b) Thermocol (c) Iron sheet (d) Asbestos
5. Which colour absorbs the minimum radiation?
(a) White
(b) Black
(c) Yellow
(d) Silver
B. Fill in the blanks.
1. Heat always flows from a body at
temperature to another at
temperature
2. During the daytime, the
breeze flows from sea to land.
3. In convection, the
particles move towards the source of heat.
4. Air is a
conductor of heat.
5. Thermal radiation can travel through
also.
6. Black colour is a
absorber of heat radiations.
estions
Answers
Answer:
i think its themocol
Explanation:
Answer:
4 the rooftops of building in hot climate are made of asbestos
Explanation:
which colour asbsorb the minimum radiation yellow fill in the blanks heat is a energy that flows from one object to another because of a temperature differences the direction of a heat flow is always from the higher temperature object to the lower answer no 2 accordingly during the day there is usually a cooling sea breeze blowing from the ocean to the shore when the air mass above the land become cooler than the air mass over the water the wind direction and convectic cell current reserve and the land breeze blows land out of sea answer no 4 transfer of heat from one particles of the adjacent particles is known as conduction of heat in solids heat is transferred by the process of conduction in this process the transfer of heat take place through adjecent molecules answer no 5 thermal radiation is the transfer of thermal energy by waves can travel through air or even through empty space as shown in the figure blow when the waves of thermal energy reach object they transfer the energy to the object causing them warm up answer no 6 light colored clothing reflect the most of this visible weave length which in turn absorb less heat on the contrary draker or black clothing absorb more weave length absorb more heat heance making the clothes warmer to wear