Agricultural Science 2013 Jamb Examination

A theodolite is a precision instrument designed to measure angles in both the horizontal and vertical planes, allowing surveyors to accurately determine the position of points relative to each other. 

The diagram shows a knife being used to carefully insert a bud (a small piece of plant tissue containing a bud and a bit of bark) into a T-shaped cut made in the bark of another plant. This is the classic technique for budding, where the bud is then allowed to grow and fuse with the rootstock.

The part labeled I is made of iron.

Checking the engine oil level is crucial to ensure proper lubrication and prevent engine damage, and should be done before each use of the tractor. 

Silage, barns, and sacs are commonly used to store grains safely. A rumbus is not a recognized grain storage facility and is therefore unsuitable for grains.

Modern biotechnology primarily uses cell culture to propagate plants or microorganisms in controlled laboratory conditions, unlike grafting, layering, or binary fission.

For large-scale data management in agri-business, a hybrid computer handles complex data processing efficiently.

A hypothesis is a predictive statement that can be tested, describing expected relationships between experimental variables.