Explanation

• Dew is a common outcome of condensation.
• Where water vapor in the air condenses onto surfaces.
• It forming tiny droplets of water.

Explanation

Dicot plants are characterized by:

• Leaves with netted venation
• Seeds with two cotyledons
• Flowers with four or a multiple of four floral leaves

Having leaves with parallel venation is actually a characteristic of monocot plants, not dicots.

Explanation

• The Sun is approximately 109 times larger than the Earth in terms of diameter.
• The Sun's diameter is about 1,392,684 kilometers (865,374 miles).
• The Earth's diameter is about 12,742 kilometers (7,918 miles).
• So, if you were to line up 109 Earths side by side, they would roughly equal the diameter of the Sun.

Explanation

• When you run a plastic comb through your dry and non-oily hair, the comb becomes statically charged.
• This static charge causes the comb to attract small, light objects like bits of paper.
• When you hold the comb above the paper, the paper is attracted to the comb due to the electrostatic force.

Explanation

• Wear and Tear is not an advantage of friction.
• It's a disadvantage, as friction causes wear and tear on surfaces.

Advantages of Friction:

• Walking: Friction between the soles of our shoes and the ground allows us to walk without slipping.
• Braking: Friction between the brake pads and the wheels allows vehicles to slow down and stop.
• Securing knots: Friction between the fibers of a rope helps keep knots tight and secure.
• Fasteners: Friction between threads in screws and bolts helps keep them in place and secure

Explanation

Gases from household materials are not a direct cause of water pollution.

Water pollution is typically caused by the release of harmful substances into water bodies, such as:

• Sewage water from homes (containing human waste, chemicals, and other pollutants)
• Untreated water from industries (containing industrial chemicals, heavy metals, and other pollutants)
• Water runoff from agriculture (containing pesticides, fertilizers, and other pollutants)

Explanation

• Insects are a group of animals that have three pairs of jointed legs, and many of them have one or two pairs of wings.
• Their body is divided into three main segments: head, thorax, and abdomen.
• Insects include a wide range of species, some of which suck blood (like mosquitoes) or nectar from flowers (like bees and butterflies).
• Insects also lay eggs.

Explanation

• Gas Giants are large, gaseous planets that are primarily composed of hydrogen and helium, and include Jupiter, Saturn, Uranus, and Neptune.
• They have no solid surface and are characterized by their massive size and atmospheric composition.

Explanation

• When the child rubs the balloons with wool, the balloons become statically charged with the same type of charge (either positive or negative).
• When two objects with the same charge are brought near each other, they repel each other.

Explanation

• Mammals are a group of animals that have babies that are born alive (viviparous), are warm-blooded (endothermic), have mothers that feed their babies with milk (lactation), and have fur, hair, or skin and a spine (vertebrates).
• Examples: humans, dogs, cats, bears, whales, dolphins, lions, monkeys, elephants and sharks etc.