Question 1

What reacts with oxygen to produce rust?

Accepted Answer

Iron reacts with oxygen in the presence of moisture or water to form a red oxide called rust and the reaction involved is called as Redox reaction.

Question 2

Which of the following is an example of secondary succession?

Accepted Answer

Secondary succession means in an ecosystem renewal of itself after all or a portion has been destroyed. After a forest fire, the whole forest had destroyed but after that again renewal of that forest is also an example of secondary succession.

Question 3

Particles of matter are continuously moving.

Accepted Answer

Yes, in any matter the particles are always moving. But the speed of the particles moving sepends on the temperature. As temperature increases, the speed of the particles also increases.

Question 4

Which of the following foods does not support bacterial growth?

Accepted Answer

Dried foods like raw egg, raw carrots, milk powder, etc... are the foods that do not support bacterial growth and has a long storage life.

Question 5

Fat in the body helps to protect vital organs.

Accepted Answer

In the body, the fat stored can be served as a cushions or insulation which protects the vital organs in the body from the external damage in the environment.

Question 6

The longest bone in the human body is

Accepted Answer

The femur is the longest bone in the human body. It is also called as thigh bone. Stapes in the shortest bone in the body that is present in the middle ear.

Question 7

The process of making RNA from DNA is called

Accepted Answer

The process of making RNA from DNA is called Transcription.

Question 8

Heat from the sun is called

Accepted Answer

Heat from the sun travels in the form of rays and are called as heat rays. This heat is called as radiation.

Question 9

In C3 plants the conservation of water promotes

Accepted Answer

C3 plants are plants that undergo C3 photosynthesis, which means that they undergo the Calvin cycle (converting carbon dioxide into energy) in their chloroplasts and typically keep their stomata open during the day. These are the most common types of plants. In C3 plants the conservation of water promotes Photorespiration.

Question 10

By definition a clade is

Accepted Answer

A clade is a group of ancestral species and all its descendants. Hence it is a branch of one same species and so monophyletic.

Question 11

Speeding is a factor in _% of all fatal accidents?

Accepted Answer

In all the fatal accidents, 30% of them are with speeding factor.

Question 12

Earth is a system comprised of interacting processes.

Accepted Answer

True, Earth is a system comprised of interacting processes. Such processes include carbon cycle, water cycle, Phosphorous cycle,...

General Science Questions