What is sustainable development ?

What do you mean by sustainable development?

STATE TRUE OR FALSE.World Summit on Sustainable Development was held in 2002 at Johannesberg.

What is development ?

What is the nature of development of embryo in fern?

Which type of conservation practice promotes sustainable economic development and allows education and experimentation by scientists?

What do you mean by development?

What is development ? What are direct and indirect developments ?

Morula is a development stage:

What is the difference between direct and indirect development?

What is the difference between direct and indirect development?