What causes refraction in water? Refraction occurs when light goes through a water surface since water has a refractive index of 1.33 and air has a refractive index of about 1. This is due to the bending of light rays as they move from the water to the air. What color do you see when […]

Why does Earth rotate on its axis? Earth spins because of the way it was formed. Our Solar System formed about 4.6 billion years ago when a huge cloud of gas and dust started to collapse under its own gravity. As the cloud collapsed, it started to spin. The Earth keeps on spinning because there […]

What are producers and consumers give example? Organisms that produce their own food from simple inorganic substances such as water and carbon dioxide are called producers. Examples are green plants and blue-green algae. Organisms that consume the food prepared by producers are called consumers. Examples are cows and human beings. What is the difference between […]

What is radiant energy made of? Radiant energy is the energy of electromagnetic waves. These waves can travel through space. Electromagnetic radiation is made up of tiny particles called photons – think of them as little packets of energy. Light energy is a form of radiant energy that is visible to the human eye. What […]

How many species of sunflowers are there? 52 species What is the rarest sunflower? Schweinitz’s sunflower What are the variety of sunflowers? Tall and Tiny Sunflower Varieties Sunflower ‘Sunforest Mix’ If you have children, grow an almost-instant playhouse for them to enjoy. Sunflower ‘Elf’ Sunflower ‘Soraya’ Sunflower ‘American Giant’ ‘Pacino’ Sunflower. Sunflower ‘Zohar’ Sunflower ‘Baby […]

What region has more plant varieties than anywhere in the world? There are over 30 recognized biodiversity hotspots in the world. The Andes Mountains Tropical Hotspot is the world’s most diverse hotspot. About one-sixth of all plant species in the world live in this region. The New Zealand archipelago is another hotspot. What are the […]

Is Japan an island or archipelago? Japan is another island arc. The Japanese archipelago consists of four large islands, from Hokkaido, in the far north, through Honshu, Shikoku, and Kyushu in the far south. Japan also includes more than 3,000 smaller islands. In several places in the Japanese archipelago, volcanoes are still active. Is Japan […]

What countries are in North Eurasia? northern eurasia countries and their capitals… Moscow, Russia, Tashkent, Uzbekistan, etc……northern eurasia countries and capitals. A B Moscow Russia Alma-Ata Khazakhstan Tashkent Uzbekistan Bishkek Kyrgyzstan How many countries are in northern Eurasia? Eurasia Area 55,000,000 km2 (21,000,000 sq mi) Population density 93/km2 (240/sq mi) Demonym Eurasian Countries ~93 countries […]

What would Earth look like if there was no oxygen? Any building made of concrete would crumble as oxygen helps to bind all concrete structures. Water is one third oxygen, without it the Hydrogen becomes a free gas and expands, thereby destroying all living cells and evaporating the oceans. The earth below us would disappear […]

What kind of a layer is mesosphere? The mesosphere (/ˈmɛsoʊsfɪər/; from Greek mesos, “middle”) is the third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere. In the mesosphere, temperature decreases as altitude increases. What is the mesosphere made of? The mesosphere’s atmosphere is low density and made up of oxygen, […]