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Is this statement true or false Water vapor does not need a solid object on which to condense.?
True. Water vapor can condense directly into liquid water without needing a solid object as a surface for condensation to occur. The process of condensation can happen in the air when water vapor cools and reaches saturation point.
True or false when an object rolls over a surface the kind of friction that occurs is called round friction?
False. The type of friction that occurs when an object rolls over a surface is called rolling friction, not round friction. Rolling friction is caused by the deformation of the object and surface at the point of contact, which generates resistance that opposes the motion of the object.
The volume of the displaced water is equal to the volume of the portion of the object that's above the surface of the water?
This statement is not correct. The weight of the water displaced by a body in it, is equal to the buoyancy force that the body will experience. In the case the body floats on the surface of water, the weight of the water displaced by the body is equal to the weight of the body.
Electric currents will pass along a pencil lead true or false?
False, Pb (lead) is an electrolyte and can pass electricity VERY efficiently, but unfortunately pencil "lead" is actually graphite, which is a derivative of stone, and will not effectively pass an electric current.
Ultra sound waves are those sound waves with frequencies less than 20 Hz is it true or false?
False. Ultrasound waves are sound waves with frequencies above the range of human hearing, typically above 20,000 Hz, not less than 20 Hz.
Is it true or false that a surface current warms or cools the air above it influencing the climate of the land near the coast?
True. Surface currents can transport heat from one area to another, affecting the temperature of the air above them. Warm currents can bring warmer temperatures to coastal areas, while cold currents can have a cooling effect on the climate of the land nearby.
Intrusive igneous rock is cooled and solidified above ground?
False. Intrusive igneous rock forms underground when magma cools and solidifies slowly. Extrusive igneous rock forms when magma erupts onto the Earth's surface and cools quickly.
Do convection currents carry sunspots across the surface of the sun?
False
Lava that cools above ground forms tiny crystals is true or false?
Yes. And the size of crystals depend on the time taken to crystallize.
Is it true that igneous rocks form only beneath earths surface?
No, igneous rocks can form both beneath and above the Earth's surface. Intrusive igneous rocks form beneath the surface as magma cools and solidifies underground. Extrusive igneous rocks, on the other hand, form on the Earth's surface when lava cools and solidifies quickly.
Does convection currents in the oceans cause tectonic plates to move?
No, convection currents in the mantle beneath the Earth's crust are the main driving force for tectonic plate movement. These currents are caused by the heating and cooling of the mantle material, creating circulation patterns that push and pull on the plates above. While ocean currents can influence surface processes and climate, they do not directly cause tectonic plate movement.
Is this true or false formed in the mantle molten material called lava cools to form minerals below earth's surface?
This is false. Molten material below earth's surface is known as magma. It is only known as lava once it has been erupted onto the surface.
Fog is a cloud high in the sky true or false?
This is false: fog consists of clouds whose base is near or on the surface of the ground or water.
Air always becomes saturated when it rises and cools. true or false?
False - it always cools, but it won't cool to its dew point if the air is dry enough
True or false intrusive igneous rock forms small crystals because it cools rapidly?
True. Intrusive igneous rock, also known as plutonic rock, forms larger crystals because it cools slowly underground. Extrusive igneous rocks cool rapidly on the Earth's surface, forming smaller crystals.
Only oceans have currents?
A+ False By Abii
Larger crystals will be formed when molten rock cools more slowly true or false?
its false
