<span>When
valley inversion occurs especially on farming, settlement and industry, it will
cause air to become stiller and murky due to the dust particles suspended
within the layer and pollutants that are heavy enough to move. It will cause health
problems such as asthma, heart attack. Also, the people living in that are may
not see what is in front of them due to air becoming thicker.</span>
Answer:
arrangement of population according to geographical structure and physical division is known as population density.....
Explanation:
1. Stomata are the openings on the leaf for the exchange of the water and air from the plant to the environment. It actually helps plants to breath, so it can also be seen as nostrills of the plants. They are present on either side of the leaves. Opening a stomata is like opening the doors for the exchange of the gases . This comes at a cost.
Due to sunlight and heat from the environment water content of the leaf is also remarkably lost when stomata opens, which is protected otherwise due to outer waxy layer of the leaf. To reduce this, most of the stomata are present on the lower surface of the leaves, as it will reduce the possibility of water loss due to high sunlight during the afternoon.
2. In aquatic plants you can find most of the stomata present on the upper surface of the leaf. As the plants float on the water surface, its lower epidermis is stuck to the water, hence respiration is least likely there as there is no contact of the stomata with the air.
Answer:
For many years scientists have studied our own solar system. But until the last few years, we knew of no other solar systems. This may seem surprising, as the Sun is one of about 200 billion stars (or perhaps more) just in the Milky Way galaxy alone.
Explanation:
Answer:
<em>False</em>
Explanation:
The galactic disk is divided into 2 zones, the thick and thin zones, related to the age since their formation, and structure.
The thin disk is composed of younger stars, dust, and gas.
The thick disk (also called stellar halo) is composed of older stars. It was formed at an earlier stage of the galaxy formation and thus has less heavy elements.
