Page 1 - MM

SAI International School
Subject- Biology, Class- IX
Chapter- Improvement in Food Resources
Subtopic- Crop Production Management
Module- 16
Home Assignment – I

Objective(MCQ)

1. Using fertilizers in farming is an example of:
(a) No-cost production
(b) Low-cost production
(c) High-cost production
(d) None of these

2. Nitrogen, phosphorus, and potassium are examples of:
(a) Micro-nutrients
(b) Macro-nutrients
(c) Fertilizers
(d) Both (a) and (b)

3. Manure is organic matter used to enrich the soil with nutrients and it also
improves the physical structure of soil. Following are some statements regarding
the composition or effects of using manure. Find out the correct sentences about
manure.
(i) Manure contains large quantities of organic matter and small quantities of
nutrients
(ii) It increases the water holding capacity of sandy soil
(iii) It helps in draining out the excess water from clayey soil
(iv) Its excessive use pollutes the environment because it is made of animal
excretory waste
(a) (i) and (iii)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (iii) and (iv)

4 What is the process of growing two or more crops in a definite pattern?
(a) Crop rotation
(b) Inter-cropping
(c) Mixed cropping
(d) Organic cropping

5 Which of the following is a synthetic mineral nutrient?
(a) Farmyard manure
(b) Compost