Answer:
Explanation:
Land plants are one of the major support of life. Oxygen gases given as a waste product from plant is what human takes in as air to support life. Lands plant provides the major food we eat, which without men cannot survive.
Most medicines, herbs used in various ailment treatment are from land plant this makes them of immense important on the planet earth.
They help in maintaining the ecosystem by reducing the effect of global warming while making use of abundant carbon dioxide that is available in the atmosphere.
1) Store the cells DNA
2) Control cell division and cell growth
Answer:
Physical
Explanation:
A physical change can be undone. A chemical change cannot. The frost on the grass will melt, therefore it can be undone.
Answer;
Structure B (chloroplasts)
Explanation;
The process of Photosynthesis takes place inside plant cells in small things called chloroplasts. Chloroplasts contain a green pigment called chlorophyll. This pigment is responsible for absorbing light energy or sunlight from the sun that is used to breakdown or split water molecules into hydrogen ions and oxygen atoms, during the light-dependent stage of photosynthesis.
If the The speed of light is approximately 3 × 108 meters per second (m/sec) so the speed of light written in standard numerical form is 300,000,000 m/sec. You will just simply move the place holders to 8 places to the right since the exponent is a positive number. So 3^8= 3x100000000 which is equal to 300,000,000 .
