A joint family is considered bigger compared to a nuclear family because a joint family includes grandparents, uncles, aunts, cousins, and in-laws, aside from the typical mother, father, and children. ... Nuclear family normally consists of two parents and the number of children. 

Joint Family

1. Dependency – As discussed, a joint family is an extended family and it consists of a lot of members. People can depend on each other for any kind of help. Thus, this is one of the best quality that a joint family possess.

2. Unity – Joint family creates an emotional bond between two generations and it helps to keep the family united in all the situations. The tradition and culture is passed on to the coming generations so that they can take it forward. The proverb “United we stand, Divided we fall”, goes true in the joint family system.

3. Preference of the youngsters – There are youngsters out there in the society, who prefer a social life with a better support system. These people believe in the system of joint family.

4. Provides an opportunity for leisure time – The joint family system provides an opportunity for leisure time as the female members divide the household work and finish it off very soon.

5. Social insurance – Joint family acts as a social insurance and a support for the widows and the old aged people. They are assured of a proper living.

Nuclear family

1. More freedom – Nuclear families have more freedom as compared to a joint family system. They do not have to worry about what the other members of the household may think. They can roam around freely and come back at any time without being answerable to anyone. Democracy exists in a nuclear family.

2. Bonding – Nuclear family is based upon the parental love and sibling connection. The mechanism of relationships in a nuclear family is very straight forward. It is based on the foundation of mutual respect and love for each other.

3. Kid's preference – Youngsters of a nuclear family prefer more freedom and less restrictions. As both the parents go to work, kids may feel bored at home. They may prefer to go out and play with their friends or to go out for an outing. To carry out such activities, less restriction is essential.

4. Quarrels – Nuclear families face fewer quarrels when compared to a joint family. Usually, they are the small quarrels between a husband and wife or a child and the parents.

A nuclear family is a family where father, mother and their children live in one household - they flock together like objects around a nucleus. Nuclear family is defined as parents and their minor children who are living under one roof. An example of a nuclear family is a mom, dad and their kids. In simple terms, a nuclear family system is a family structure that consists of two parents living with their children, also known as an immediate family. ... This system is different from an extended family system, in which the household may include non-immediate family members, such as grandparents, aunts and uncles.

Even though our planet is a sphere, it is not a perfect sphere. Because of the force caused when Earth rotates, the North and South Poles are slightly flat. Earth's rotation, wobbly motion and other forces are making the planet change shape very slowly, but it is still round. Planet Earth is not, in fact, perfectly round. ... Isaac Newton first proposed that Earth was not perfectly round. Instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

An environment is a place where different things are such as a swampy or hot environment. They constantly interact with it and adapt themselves to conditions in their environment. In the environment, there are different interactions between animals, plants, soil, water, and other living and non-living things. The environment is the total area in which an object or an organism is found. ... The living components include plants, animals and microorganisms while the non-living components include air, water, temperature, soil, etc. These all components are necessary and affect the organisms or objects in one or the other way. Environment plays an important role in the healthy living of human beings. it matters because it is the only home that humans have, and it provides air, food, and other needs. Humanity's entire life support system depends on the well-being of all the environmental factors.

An ecosystem is made up of all the living animals and plants and the non-living matter in a particular place, like a forest or lake. The idea of the web of life is shown by the interdependence within an ecosystem. Animals and plants depend on a complex system of food for survival. A succession of organisms in an ecological community that are linked to each other through the transfer of energy and nutrients, beginning with an autotrophic organism such as a plant and continuing with each organism being consumed by one higher in the chain.

Humans are dependent on nature for many things. Since our emergence on this planet humans have been dependent on nature because humans are part of nature. Humans use animals and plants for food, dig up the ground for sources of energy, cut down trees to build shelter. People depend on plants for food, clean air, water, fuel, clothing, and shelter. Nearly all food webs begin with plants, the primary producers. During photosynthesis, green plants use sunlight to change carbon dioxide from the air and water into simple sugars made of carbon, hydrogen, and oxygen.