What are ocean currents 7?

Ocean currents are streams of water flowing constantly on the ocean’s surface in definite directions. They are caused by differences in the temperature and salinity of water, by wind, solar heating and gravity. The winds majorly responsible for creating ocean currents are the Westerlies and the Trade winds.

What are ocean currents Grade 7?

Answer: The streams of water flowing constantly on the ocean surface in a definite direction are called ocean currents. The ocean currents may be warm or cold.

What are ocean currents 7 Easy?

Ocean currents are streams of water flowing constantly on the ocean surface in definite directions. The ocean currents may be warm or cold. The warm ocean currents originate near the equator and move towards the poles. The cold current carries water from polar or higher latitudes to tropical or lower latitudes.

What are the ocean currents?

Ocean currents are the continuous, predictable, directional movement of seawater driven by gravity, wind (Coriolis Effect), and water density. Ocean water moves in two directions: horizontally and vertically. Horizontal movements are referred to as currents, while vertical changes are called upwellings or downwellings.

What are ocean currents answer?

Answer: An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences.

How do we classify ocean movements explain Class 7?

Answer. Ocean movements can be classified into waves, tides and currents. * When the water on the surface of the ocean rises and falls alternately, they are called waves. Waves are formed when winds scrape across the ocean surface.

What is Ncert 7th water cycle?

Water of Class 7



The water from the oceans and surface of the earth evaporates and rises up in the air. It cools and condenses to form clouds and then falls back to the earth as rain, snow or hail. This circulation of water between the oceans and land is called water cycle.

What are the 7 processes of the water cycle?

The water cycle processes involve evaporation, condensation, precipitation, interception, infiltration, percolation, transpiration, runoff, and storage. Evaporation takes place when water changes from its liquid state to vapor or gaseous state.

What is water cycle in short answer?

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.

How are tides caused Class 7?

How are Tides formed ? exerted by the sun and the moon on earth’s surface causes the tides. The water of the earth closer to the moon gets pulled under the influence of the moon’s gravitational force and causes high tide.

What are called tides?

Tides are very long-period waves that move through the ocean in response to the forces exerted by the moon and sun. Tides originate in the ocean and progress toward the coastlines where they appear as the regular rise and fall of the sea surface.

What is a terrarium class 7?

Answer: A terrarium is an artificial enclosure used for keeping small house plants. Our earth is like a terrarium.

Why is our Earth like a terrarium class 7?

because our planet is like a giant greenhouse. Earth’s atmosphere absorbs and holds heat from the Sun through a process called the greenhouse effect. … Of course, Earth doesn’t work exactly like a terrarium.

What is the salinity of Dead Sea Class 7?

45 parts per thousand

Dead sea- Dead Sea in Israel has salinity of 45 parts per thousand. Swimmers can float in it because the increased salt content makes it dense. We know that three fourth of the earth surface is covered by water.

What are the importance of water Class 7?

Water is also important because it an universal solvent. Water provides habitat for various animals in the form of ponds, rivers, seas etc. Water forms blood, lymph and other body fluids. It transports all waste materials from all the cells to the kidney, skin and lungs for excretion.

Why is it called a terrarium?

The word terrarium was first used in the late 1800s, and it came from the word aquarium — substituting terre (meaning “land”) for aqua (meaning “water”).

What goes in a vivarium?

So a vivarium is the umbrella term for any type of reptile tank – glass, plastic and wood. Basically anything your reptile can live in is a vivarium – even a terrarium is a vivarium.

What is the meaning vivarium?

Definition of vivarium



: a terrarium used especially for small animals.

What are water terrariums called?

A paludarium is basically a terrarium with a body of water. It has both aquatic and terrestrial features.

What is moss terrarium?

A terrarium is, basically, a clear and non-draining container that holds its own small environment. Anything can be used as a terrarium container – an old aquarium, a peanut butter jar, a soda bottle, a glass pitcher, or whatever else you might have.

What is difference between terrarium and vivarium?

So, what is the difference between a terrarium and a vivarium? Though both environments and can look very similar in terms of plants and earth; terrariums are designed to raise plants, and vivariums are designed primarily to be a habitat for an animal.

What is the difference between an aquarium and a terrarium?

The main difference between aquarium and terrarium is that aquarium houses fish, other aquatic animals and plants while terrarium houses plants and small land animals. Moreover, aquaria are typically completely filled with water, whereas terraria are not.

Can I use a terrarium as a fish tank?

Straight answer — No, terrariums should not be used as aquariums. Although the two might look similar, more often than not, they are structurally different. As a result, using a terrarium in place of an aquarium could result in leaks, poisoning, even the complete destruction of your tank.

Can you use an aquarium as a vivarium?

Whether you have an existing aquarium or fish tank that has been collecting dust, or you went out and bought a new one like I did, they make perfect terrariums! What is this? You can really use any size glass aquarium. You’re only limited by your imagination, space, and the size of your plants!

Can you keep a reptile in a fish tank?

Despite this popularity, aquariums are not ideal enclosures for reptiles, as they are designed for the needs of fish. But, while aquariums are not ideal caging for most reptiles, particularly larger species, they can make acceptable housing for small lizards, snakes and turtles.

Can I put a bearded dragon in a fish tank?

Caging a Bearded Dragon



Young bearded dragons can temporarily live in 25-gallon aquarium, but adults should be caged in at least a 75-gallon aquarium.

Can snakes live in fish tanks?

Fish thrive in the vertical orientation of most aquariums, while snake’s will benefit from more front-to-back space. For ball pythons, Children’s pythons and savu pythons, a 20-gallon “long” aquarium provides enough space, but a 40-gallon “breeder” tank would be preferable.