4th Grading Long Quiz no.1 Science 6

It is defined as the force that attracts objects to each other.

It is the measure of how much matter there is in an object.

The strength of the gravitational force depends on the masses of the objects and the given distance between them.

The greater the mass of an object, the lesser is the force of gravity acting on it.

The weight of an object is due to the force of gravity on its mass.

Once the gravitational force changes, the weight doesn't change.

Gravity is the force that pulls objects toward each other.

An ecosystem is a natural community where biotic components interact with abiotic components.

Mangrove swamps are coastal wetlands characterized by salt-loving trees, shrubs, and other plants often found in estuaries.

Mangrove Swamps serve as nurseries for many fishes.

Mangroves also provide coastal protection since the dense root system of mangroves traps sediments that flow down rivers and from the land.

Mangrove wood is resistant to insects and rotting.

Mangrove Swamps also help prevents erosion from waves and storms.

Mangrove trees dominate this wetland ecosystem due to their ability to survive in freshwater only.

A wide diversity of animals are found in mangrove swamps.