Secondary School (English Medium) (5 to 8) कक्षा ७ - CBSE Question Bank Solutions

Why do farmers grow many fruits and vegetable crops inside large greenhouses? What are the advantages to the farmers?

Anaerobic bacteria digest animal waste and produce biogas (Change – A). The biogas is then burnt as fuel (Change – B). The following statements pertain to these changes. Choose the correct one.

Every object moves with a constant speed.

Distances between two cities are measured in kilometres.

The time period of a given pendulum is constant.

The speed of a train is expressed in m/h.

Why is it not advisable to burn plastic and synthetic fabrics?

Match the organisms given in Column I with their mode of nutrition given in Column II.

Can you give me a name?

Solve the following riddles by writing the name of the organism and its mode of nutrition. One riddle is solved to help you.

I live in water; people keep me in an aquarium and feed me. ______, ______

Given below from (i) to (iv) are some food items.

1. Boiled and mashed potato
2. Glucose solution
3. A slice of bread
4. Mustard oil

Which of the above will give a blue-black colour when tested with iodine?

Read carefully the terms given below. Which of the following set is the correct combination of organs that do not carry out any digestive functions?

The enzymes present in the saliva convert ______.

Cud is the name given to the food of ruminants which is ______.

Choose the correct order of terms that describes the process of nutrition in ruminants.

Cellulose-rich food substances are good source of roughage in human beings because ______.

Name the parts of the alimentary canal where water gets absorbed from undigested food.

Mark the following statement as True or False. If false, write the correct statement.

All heterotrophs have a similar basic process of nutrition.

Digestion of food starts in ______ and gets completed in ______.

Following statements describe animal nutrition. Read the statement and give one word for the statement. Write the terms that describe process.

Breaking of complex food substances into simpler and soluble substances.

Fill in the blanks using the words listed below.

1. The digestion of all food components is completed by the ______ juice.
2. Large intestine absorbs ______ and some ______ from the undigested food.
3. Tongue is attached at the ______ to the floor of the mouth cavity and is free at the ______.
4. Amoeba pushes out ______ around the food and traps it in a food ______.