____ means use a material again in a different form. Pandas are ____ animals so we should protect them. There is a lot of air ____ in big cities. Unfortunately there is a lot of ____ in the oceans. The energy from the sun is called ____ power'.

द्वारा

लीडरबोर्ड

दृश्य शैली

विकल्प

टेम्पलेट स्विच करें

ऑटो-सेव पुनःस्थापित करें: ?