Answer:
It's C. Plants produce oxygen and nutrients via a process known as photosynthesis using water and carbon dioxide
Answer:
(01) D
(02) E,C.
Explanation:
(01) the growing number of people in the cities puts a strain on waste management efforts. If a city cannot effectively cope, this will mean poor management which will strain the condition of our environment further. it can cause diseases especially in poor areas.
Answer:
Villi
Explanation:
In the small intestine, villi are found present. These villi which appear like a finger-like tissue structure are about 0.5–1.6mm in length in human beings.They have mucosal cells that help in absorption of nutrients. A villus has several microvilli, which increases the surface area of the intestinal wall for faster absorption of nutrients.
Answer:
Earth radiates infrared radiation.
Incident infrared radiation is blocked.
Infrared radiation is blocked and heats Earth.
Visible and ultraviolet radiation heat Earth.
Explanation:
When the sunlight enters earth's atmosphere, it has short wavelength but after hitting the earth surface, it has long wavelength which allow very less solar radiation by the clouds and greenhouse gases to go into the atmosphere and as a result the earth heat up. if the greenhouse gases are increased in the atmosphere so more heat is blocked by these greenhouse gases and as a result global warming occur.
All living organisms are made up of cells
