A semicircle has a radius of 7 cm. What is the perimeter

In insect physiology, the most important tanning agents involved in cuticle hardening include:

Which one of the following hydrolase enzyme occurring in soil?

Which of the following is a biennial crop?

________ has propounded that "output is a function of labour and capital".

Which gas is released in the conversion of Pyruvic acid to acetaldehyde?

Which of the following nutrients is considered mobile within the plant and hence deficiency symptoms appear first on older leaves?

What is the botanical name of the multiplier onion commonly grown in India?

In the soil water-plant continuum, what is the driving force that allows water to move from the soil through the plant to the atmosphere?

Which of the following is used as rootstock for sapota?

Given below are two statements

Statement I: C₃  plants are more efficient than C₄  plants in terms of carbon dioxide fixation